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@@ -1,5 +1,5 @@
 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>About - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="Website status (It takes several seconds to show): Friend Links（友链）: Website Description Xiaolong Wang（王小龙） 龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。 Panlong"><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/about/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
-<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="About"><meta property="og:description" content="Website status (It takes several seconds to show): Friend Links（友链）: Website Description Xiaolong Wang（王小龙） 龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。 Panlong"><meta property="og:type" content="article"><meta property="og:url" content="/about/"><meta property="article:section" content><meta property="article:modified_time" content="2023-07-28T02:49:52+08:00"><meta itemprop=name content="About"><meta itemprop=description content="Website status (It takes several seconds to show): Friend Links（友链）: Website Description Xiaolong Wang（王小龙） 龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。 Panlong"><meta itemprop=dateModified content="2023-07-28T02:49:52+08:00"><meta itemprop=wordCount content="183"><meta itemprop=keywords content><meta name=twitter:card content="summary"><meta name=twitter:title content="About"><meta name=twitter:description content="Website status (It takes several seconds to show): Friend Links（友链）: Website Description Xiaolong Wang（王小龙） 龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。 Panlong"><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><div class=post-content><p>Website status (It takes several seconds to show):</p><center><a href=https://clustrmaps.com/site/1bp0e title='Visit tracker'><img src='//clustrmaps.com/map_v2.png?cl=ffffff&w=300&t=tt&d=KNhUkfBz0L7ehCNZBExvsbzI3i4WYHNo7km8lQI9Cuc&co=2d78ad&ct=ffffff'></a></center><p>Friend Links（友链）:</p><table><thead><tr><th>Website</th><th>Description</th></tr></thead><tbody><tr><td><a href=https://guanfang12.github.io>Xiaolong Wang（王小龙）</a></td><td>龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。</td></tr><tr><td><a href=https://air-tea.github.io>Panlong Wu（吴攀龙）</a></td><td>本科大佬同学，平时一起学习通信知识，香港中文大学（深圳）phd。</td></tr><tr><td><a href=https://fu188.github.io>Weibao Fu （傅伟堡）</a></td><td>本科大佬同学，2021 SIGMOD竞赛世界冠军，腾讯SSP。</td></tr><tr><td><a href=https://haoqiuxiong.github.io>Haoqiu Xiong（熊浩球）</a></td><td>实习生学长熊博，有幸帮助他搭建了个人网页的最初版本。</td></tr></tbody></table></div></article></div></div></main><footer id=footer class=footer><div class=social-links><a href=mailto:renzy2022@mail.sustech.edu.cn class="iconfont icon-email" title=email></a>
diff --git a/categories/index.html b/categories/index.html
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@@ -4,9 +4,9 @@
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><div class=terms><div class=terms-title>3 Categories In Total</div><div class=terms-tags><a class=terms-link href=/categories/notes/>notes
 <span class=terms-count>5</span></a>
-<a class=terms-link href=/categories/diary/>diary
-<span class=terms-count>2</span></a>
 <a class=terms-link href=/categories/math/>math
+<span class=terms-count>3</span></a>
+<a class=terms-link href=/categories/diary/>diary
 <span class=terms-count>2</span></a></div></div></div></div></main><footer id=footer class=footer><div class=social-links><a href=mailto:renzy2022@mail.sustech.edu.cn class="iconfont icon-email" title=email></a>
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diff --git a/categories/index.xml b/categories/index.xml
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diff --git a/categories/math/index.html b/categories/math/index.html
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@@ -2,7 +2,8 @@
 <link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Math"><meta property="og:description" content="Ren Zhenyu's Website."><meta property="og:type" content="website"><meta property="og:url" content="/categories/math/"><meta itemprop=name content="Math"><meta itemprop=description content="Ren Zhenyu's Website."><meta name=twitter:card content="summary"><meta name=twitter:title content="Math"><meta name=twitter:description content="Ren Zhenyu's Website."><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
 <script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
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-<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><section id=archive class=archive><div class="archive-title category"><h2 class=archive-name>Math</h2></div><div class=archive-post><span class=archive-post-time>2023-05-15</span>
+<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><section id=archive class=archive><div class="archive-title category"><h2 class=archive-name>Math</h2></div><div class=archive-post><span class=archive-post-time>2023-10-07</span>
+<span class=archive-post-title><a href=/post/channel/ class=archive-post-link>Wireless Channel Trouble-Shooting</a></span></div><div class=archive-post><span class=archive-post-time>2023-05-15</span>
 <span class=archive-post-title><a href=/post/rcs/ class=archive-post-link>Notes for Bistatic Radar Cross Section (RCS)</a></span></div><div class=archive-post><span class=archive-post-time>2022-02-22</span>
 <span class=archive-post-title><a href=/post/asp/ class=archive-post-link>Notebook for Applied Stochastic Processes</a></span></div></section><nav class=pagination></nav></div></div></main><footer id=footer class=footer><div class=social-links><a href=mailto:renzy2022@mail.sustech.edu.cn class="iconfont icon-email" title=email></a>
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diff --git a/categories/math/index.xml b/categories/math/index.xml
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@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Math on Ren Zhenyu's Website</title><link>/categories/math/</link><description>Recent content in Math on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Mon, 15 May 2023 00:00:00 +0800</lastBuildDate><atom:link href="/categories/math/index.xml" rel="self" type="application/rss+xml"/><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Math on Ren Zhenyu's Website</title><link>/categories/math/</link><description>Recent content in Math on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 07 Oct 2023 00:00:00 +0800</lastBuildDate><atom:link href="/categories/math/index.xml" rel="self" type="application/rss+xml"/><item><title>Wireless Channel Trouble-Shooting</title><link>/post/channel/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/post/channel/</guid><description>DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),</description></item><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
 RCS Definition1 The RCS represents an equivalent aperture surface area of the target, which captures a certain amount of incident radiation, and which, if re-radiated isotropically, would produce an equivalent scattered field at the receiver.
 For 2d target:
 \[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}.</description></item><item><title>Notebook for Applied Stochastic Processes</title><link>/post/asp/</link><pubDate>Tue, 22 Feb 2022 00:00:00 +0800</pubDate><guid>/post/asp/</guid><description>info This is a collection of my notes for SUSTech MA208 &amp;ldquo;Applied Stochastic Processes&amp;rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&amp;rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为</description></item></channel></rss>
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 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>CV - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="任振裕（Ren Zhenyu) Brief Bio [Mail] | [Personal Website] | [CV.pdf] |[Github]. I&amp;rsquo;m an undergraduate student in the Department of Electrical and Electronics Engineering at Southern University of Science and Technology (SUSTech). I am currently studying in LAb of WirelesS communications and System Optimization (LASSO) and being supervised by Prof. Wang Rui. My research interest focuses on: Wireless Communication. Integrated Sensing And Communication (ISAC). Academia"><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/cv/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
-<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="CV"><meta property="og:description" content="任振裕（Ren Zhenyu) Brief Bio [Mail] | [Personal Website] | [CV.pdf] |[Github]. I&rsquo;m an undergraduate student in the Department of Electrical and Electronics Engineering at Southern University of Science and Technology (SUSTech). I am currently studying in LAb of WirelesS communications and System Optimization (LASSO) and being supervised by Prof. Wang Rui. My research interest focuses on: Wireless Communication. Integrated Sensing And Communication (ISAC). Academia"><meta property="og:type" content="article"><meta property="og:url" content="/cv/"><meta property="article:section" content><meta property="article:modified_time" content="2023-07-28T02:49:52+08:00"><meta itemprop=name content="CV"><meta itemprop=description content="任振裕（Ren Zhenyu) Brief Bio [Mail] | [Personal Website] | [CV.pdf] |[Github]. I&rsquo;m an undergraduate student in the Department of Electrical and Electronics Engineering at Southern University of Science and Technology (SUSTech). I am currently studying in LAb of WirelesS communications and System Optimization (LASSO) and being supervised by Prof. Wang Rui. My research interest focuses on: Wireless Communication. Integrated Sensing And Communication (ISAC). Academia"><meta itemprop=dateModified content="2023-07-28T02:49:52+08:00"><meta itemprop=wordCount content="316"><meta itemprop=keywords content><meta name=twitter:card content="summary"><meta name=twitter:title content="CV"><meta name=twitter:description content="任振裕（Ren Zhenyu) Brief Bio [Mail] | [Personal Website] | [CV.pdf] |[Github]. I&rsquo;m an undergraduate student in the Department of Electrical and Electronics Engineering at Southern University of Science and Technology (SUSTech). I am currently studying in LAb of WirelesS communications and System Optimization (LASSO) and being supervised by Prof. Wang Rui. My research interest focuses on: Wireless Communication. Integrated Sensing And Communication (ISAC). Academia"><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
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 <script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><div class=post-content><center><font size=6pt>任振裕（Ren Zhenyu)</font></center><h2 id=brief-bio>Brief Bio</h2><ul><li><p><a href=mailto:ren2022@mail.sustech.edu.cn>[Mail]</a> | <a href=https://rzy0901.github.io>[Personal Website]</a> | <a href=https://rzy0901.github.io/cv.pdf>[CV.pdf]</a> |<a href=https://github.com/rzy0901>[Github]</a>.</p></li><li><p>I&rsquo;m an undergraduate student in the Department of Electrical and Electronics Engineering at <strong>Southern University of Science and Technology</strong> (<strong><a href=https://www.sustech.edu.cn/en/>SUSTech</a></strong>). I am currently studying in <strong>LA</strong>b of <strong>W</strong>ireles<strong>S</strong> communications and <strong>S</strong>ystem <strong>O</strong>ptimization (<strong><a href=http://lasso.eee.sustech.edu.cn/>LASSO</a></strong>) and being supervised by <strong>Prof. <a href=https://eee.sustech.edu.cn/p/wangrui/index.html>Wang Rui</a></strong>.</p></li><li><p>My research interest focuses on:</p><ol><li>Wireless Communication.</li><li>Integrated Sensing And Communication (ISAC).</li></ol></li></ul><h2 id=academia--research-experience>Academia & Research Experience</h2><ul><li><p><b>Southern University of Science and Technology | Bachelor</b> <i style=float:right>September. 2018 - July. 2022</i></p><p>Majoring in Communication Engineering, supervised by Prof. <a href=https://eee.sustech.edu.cn/p/wangrui/index.html>Wang Rui</a>.</p><p>GPA: (3.69/4.00), ranked 5/26.</p></li><li><p><b>Huawei Technology, Wireless Technology Laboratory | Research Intern</b> <i style=float:right>June. 2021 - June. 2022</i></p><p>Supervised by Dr. <a href="https://scholar.google.com/citations?hl=en&user=cqvSehcAAAAJ">Tony Han Xiao</a>.</p><p>Internship Certificate: <a href=/cv.assets/%E5%AE%9E%E4%B9%A0%E8%AF%81%E6%98%8E.pdf>[pdf]</a>.</p></li></ul><h2 id=projects--software>Projects & Software</h2><p>Note: You can look up my <a href=https://github.com/rzy0901>GitHub</a> for my full project lists.</p><p><strong>1. Integrated Sensing and Communication</strong>:</p><table><thead><tr><th>Project Name</th><th>Description</th><th>Resource</th></tr></thead><tbody><tr><td><img src=/cv.assets/image-20211204033131472.png style=zoom:35%><br>Indoor and Outdoor Channel Simulations using Winprop API (Mostly finished)</td><td><li>This project uses a Ray-Tracing Software (Winprop) and its API (C++) to do Channel simulations.</td><td><a href="https://github.com/rzy0901/testWinprop/blob/master/2021_7_12.pptx?raw=true">[Slides]</a><br><a href=https://github.com/rzy0901/testWinprop>[Codes]</a></td></tr><tr><td><img src=/cv.assets/image-20220510230834702.png alt=image-20220510230834702 style=zoom:35%><br>UG Graduate Thesis. (Wi-Fi Based Indoor Near Field Imaging.)</td><td><li>This project was done during my internship of Huawei WT Lab.<br><li>An impressive experiment based on AD9361 and digital-controlled rail (driven by C++ or MATLAB function) is also given.</td><td><a href=/cv.assets/%E4%BB%BB%E6%8C%AF%E8%A3%95%E6%AF%95%E4%B8%9A%E8%AE%BE%E8%AE%A120220528v3.pdf>[Slides]</a></td></tr></tbody></table><p><strong>2. Personal Interest</strong>:</p><table><thead><tr><th>Project Name</th><th>Description</th><th>Resource</th></tr></thead><tbody><tr><td><img src=/cv.assets/image-20220116190146368.png alt=image-20220116190146368 style=zoom:33%><br>My Homepage (Continuously updated.)</td><td>A simple academic page, maintained by Hugo.</td><td><a href=https://github.com/rzy0901/rzy0901.github.io>[Codes]</a></td></tr><tr><td>Undetermined&mldr;</td><td>In Progress&mldr;</td><td></td></tr></tbody></table><h2 id=awards>Awards</h2><ul><li>2022年南方科技大学电子系优秀毕业生；</li><li>2022年南方科技大学致仁书院优秀毕业生；</li><li>南方科技大学优秀学生三等奖学金（2次）；</li><li>2020年全国大学生数学建模大赛省级一等奖；</li></ul></div></article></div></div></main><div class=back-to-top id=back-to-top><i class="iconfont icon-up"></i></div></div><script type=text/javascript src=/lib/jquery/jquery-3.2.1.min.js></script>
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-<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Test on Ren Zhenyu's Website</title><link>/</link><description>Recent content in Test on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 15 Jan 2022 00:00:00 +0800</lastBuildDate><atom:link href="/index.xml" rel="self" type="application/rss+xml"/><item><title>About</title><link>/about/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>/about/</guid><description>Website status (It takes several seconds to show): Friend Links（友链）: Website Description Xiaolong Wang（王小龙） 龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。 Panlong</description></item><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Test on Ren Zhenyu's Website</title><link>/</link><description>Recent content in Test on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 15 Jan 2022 00:00:00 +0800</lastBuildDate><atom:link href="/index.xml" rel="self" type="application/rss+xml"/><item><title>About</title><link>/about/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>/about/</guid><description>Website status (It takes several seconds to show): Friend Links（友链）: Website Description Xiaolong Wang（王小龙） 龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。 Panlong</description></item><item><title>Wireless Channel Trouble-Shooting</title><link>/post/channel/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/post/channel/</guid><description>DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),</description></item><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
 RCS Definition1 The RCS represents an equivalent aperture surface area of the target, which captures a certain amount of incident radiation, and which, if re-radiated isotropically, would produce an equivalent scattered field at the receiver.
 For 2d target:
 \[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}.</description></item><item><title>Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录</title><link>/post/opencv-gpu/</link><pubDate>Sun, 12 Mar 2023 11:10:39 +0800</pubDate><guid>/post/opencv-gpu/</guid><description/></item><item><title>Self Learning Notes for IELTS</title><link>/post/ielts/</link><pubDate>Tue, 17 Jan 2023 10:35:32 +0800</pubDate><guid>/post/ielts/</guid><description/></item><item><title>在Hugo theme-even上简单实现暗黑模式</title><link>/post/dark-mode/</link><pubDate>Sat, 05 Nov 2022 00:00:00 +0800</pubDate><guid>/post/dark-mode/</guid><description>暗黑模式介绍 Hugo的even主题在github已经两年没有更新了，我应该是第一个为该主题提供暗黑模式的人（但是由于在手机端还有bug，我暂</description></item><item><title>基于深度摄像机ZED 2i提取导出三维人体骨骼</title><link>/post/zed/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/post/zed/</guid><description>ZED SDK 安装，功能参考实现链接：ZED SDK Documentations以及Body Tracking Overview。 3D Body Tracking需要CUDA11.1以上</description></item><item><title>OpenPose初使用: CV的方法提取人体骨骼</title><link>/post/openpose/</link><pubDate>Thu, 06 Oct 2022 00:00:00 +0800</pubDate><guid>/post/openpose/</guid><description>OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV</description></item><item><title>Linux Summary</title><link>/post/linux/</link><pubDate>Thu, 12 May 2022 00:00:00 +0800</pubDate><guid>/post/linux/</guid><description>Linux Summary windows双系统干净删除Ubuntu 磁盘管理 删除卷。 CMD： 1 2 3 4 5 6 diskpart list disk select disk 0 list partition select partition 1 assign letter = j 管理员权限打开记事本，删除J/</description></item><item><title>Notebook for Applied Stochastic Processes</title><link>/post/asp/</link><pubDate>Tue, 22 Feb 2022 00:00:00 +0800</pubDate><guid>/post/asp/</guid><description>info This is a collection of my notes for SUSTech MA208 &amp;ldquo;Applied Stochastic Processes&amp;rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&amp;rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为</description></item><item><title>Intoduction（写在前面）</title><link>/post/introduction/</link><pubDate>Tue, 18 Jan 2022 23:09:36 +0800</pubDate><guid>/post/introduction/</guid><description>Why I set up such a Personal Website1 Firstly, from the point of view as a student, I think it is necessary for me to build up a private place to record and manage my notes (or some other things) efficiently. In the past three years of my undergraduate student career, I could always dig some interesting ideas almost every day but not always had a chance (or a good</description></item><item><title>CV</title><link>/cv/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>/cv/</guid><description>任振裕（Ren Zhenyu) Brief Bio [Mail] | [Personal Website] | [CV.pdf] |[Github]. I&amp;rsquo;m an undergraduate student in the Department of Electrical and Electronics Engineering at Southern University of Science and Technology (SUSTech). I am currently studying in LAb of WirelesS communications and System Optimization (LASSO) and being supervised by Prof. Wang Rui. My research interest focuses on: Wireless Communication. Integrated Sensing And Communication (ISAC). Academia</description></item></channel></rss>
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 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>Notebook for Applied Stochastic Processes - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu (Based on Professor Zhang Yiying's lectures)"><meta name=description content="info This is a collection of my notes for SUSTech MA208 &amp;ldquo;Applied Stochastic Processes&amp;rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&amp;rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为"><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/post/asp/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
-<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Notebook for Applied Stochastic Processes"><meta property="og:description" content="info This is a collection of my notes for SUSTech MA208 &ldquo;Applied Stochastic Processes&rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为"><meta property="og:type" content="article"><meta property="og:url" content="/post/asp/"><meta property="article:section" content="post"><meta property="article:published_time" content="2022-02-22T00:00:00+08:00"><meta property="article:modified_time" content="2023-07-28T02:49:52+08:00"><meta itemprop=name content="Notebook for Applied Stochastic Processes"><meta itemprop=description content="info This is a collection of my notes for SUSTech MA208 &ldquo;Applied Stochastic Processes&rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为"><meta itemprop=datePublished content="2022-02-22T00:00:00+08:00"><meta itemprop=dateModified content="2023-07-28T02:49:52+08:00"><meta itemprop=wordCount content="1414"><meta itemprop=keywords content="Math,"><meta name=twitter:card content="summary"><meta name=twitter:title content="Notebook for Applied Stochastic Processes"><meta name=twitter:description content="info This is a collection of my notes for SUSTech MA208 &ldquo;Applied Stochastic Processes&rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为"><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>Notebook for Applied Stochastic Processes</h1><div class=post-meta><span class=post-time>2022-02-22</span><div class=post-category><a href=/categories/math/>Math</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class=post-toc-content><nav id=TableOfContents><ul><li><a href=#chapter-1-preliminaries-reviews-on-probability-theory>Chapter 1: Preliminaries: Reviews on Probability Theory</a><ul><li><a href=#probability-space>Probability Space</a></li><li><a href=#random-variable-and-distributions>Random Variable and Distributions</a></li><li><a href=#expectations>Expectations</a></li></ul></li><li><a href=#关于本博客撰写的一些统一规范>关于本博客撰写的一些统一规范</a></li></ul></nav></div></div><div class=post-content><div class="admonition info"><p class=admonition-title>info</p><p>This is a collection of my notes for SUSTech MA208 &ldquo;Applied Stochastic Processes&rdquo;, in the spring semester of 2022, based on Professor <a href=https://sites.google.com/site/yiyingzhang16>Zhang Yiying (张艺赢)</a>&rsquo;s lectures and slides.</p></div><blockquote><p>毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为参考。</p><ul><li>有时间再更新整个notebook。</li></ul></blockquote><h1 id=chapter-1-preliminaries-reviews-on-probability-theory>Chapter 1: Preliminaries: Reviews on Probability Theory</h1><h2 id=probability-space>Probability Space</h2><div class="admonition tip"><p class=admonition-title>Definition (Probability Space).</p>The probability space $(\Omega,\mathcal{F},\mathbb{P})$ is defined as follows:<ul><li><span class="math inline">\(\Omega\)</span>: sample space, the set of all possible outcomes.</li><li><span class="math inline">\(\mathcal{F}\)</span>: <span class="math inline">\(\sigma\)</span>-field (<span class="math inline">\(\sigma\)</span>-algebra) on <span class="math inline">\(\Omega\)</span> or collection of events.</li><li><span class="math inline">\(\mathbb{P}\)</span>: Probability measure on <span class="math inline">\((\Omega,\mathcal{F})\)</span>.</li></ul></div><div class="admonition tip"><p class=admonition-title>Definition ($\sigma$-algebra).</p><p>For a sample space <span class="math inline">\(\Omega\)</span>, <span class="math inline">\(\mathcal{F}\)</span> is said to be a <span class="math inline">\(\sigma\)</span>-algebra if it satisfies:</p><ul><li><span class="math inline">\(\Omega \in \mathcal{F}\)</span>;</li><li>closed under complement, that is, if <span class="math inline">\(E\in \mathcal{F}\)</span>, then <span class="math inline">\(E^c \in \mathcal{F}\)</span>;</li><li>closed under countable unions of events, that is, <span class="math inline">\(E_i \in \mathcal{F}\)</span>, <span class="math inline">\(i=1,2,\cdots\)</span>, then <span class="math inline">\(\cup_iE_i \in \mathcal{F}\)</span>.</li></ul><p><em>Remark</em>: <span class="math inline">\(\mathcal{F}\)</span> is collection of sets (For example, <span class="math inline">\(\Omega = \{a,b,c,d\}\)</span>, <span class="math inline">\(\mathcal{F}=\{\emptyset,\Omega,\{a,b\},\{c,d\}\}\)</span>).</p></div><div class="admonition tip"><p class=admonition-title>Definition (Probability).</p><p>Any event <span class="math inline">\(E \in \Omega\)</span>, <span class="math inline">\(\mathbb{P}(E)\)</span> is called the probability of the event <span class="math inline">\(E\)</span> if it satisffies:</p><ul><li><span class="math inline">\(0 \leq \mathbb{P}(E) \leq 1\)</span>;</li><li>If <span class="math inline">\(E_i \in \mathcal{F}\)</span>, <span class="math inline">\(E_i \cap E_j = \emptyset\)</span> for <span class="math inline">\(i\neq j\)</span> (mutually disjoint events), then <span class="math inline">\(\mathbb{P}(\cup E_i)=\sum_i\mathbb{P}(E_i)\)</span>; (概率的可数可加性)</li><li><span class="math inline">\(\mathbb{P}(\Omega) = 1\)</span>. (<span class="math inline">\(\mathbb{P}(\emptyset) = 0\)</span>)</li></ul><p><em>Remark</em>: <span class="math inline">\(\mathbb{P}(\cup_iE_i)\leq \sum_i\mathbb{P}(E_i)\)</span> (subadditivitiy property or Boole&rsquo;s inequality).</p></div><div class="admonition info"><p class=admonition-title>Remark (Continuity property of $\mathbb{P}$).</p><p>For a monotone sequence <span class="math inline">\(\{E_n,n \geq 1\}\)</span>, if and only if <span class="math inline">\(\lim\limits_{n\to \infty}\mathbb{P}(E_n)=\mathbb{P}(\lim\limits_{n \to \infty}E_n)\)</span>.</p><ul><li><p>(Increasing sequence). If <span class="math inline">\(E_1 \subset E_2 \subset \cdots\)</span>, then <span class="math inline">\(\lim\limits_{n\to \infty}\mathbb{P}(E_n)=\mathbb{P}(\lim\limits_{n \to \infty}E_n)=\mathbb{P}(\cup_{n=1}^{\infty}E_n)\)</span>.</p></li><li><p>(Decreasing sequence). If <span class="math inline">\(E_1 \supset E_2 \supset \cdots\)</span>, then <span class="math inline">\(\lim\limits_{n\to \infty}\mathbb{P}(E_n)=\mathbb{P}(\lim\limits_{n \to \infty}E_n)=\mathbb{P}(\cap_{n=1}^{\infty}E_n)\)</span>.</p></li></ul></div><div class="admonition tip"><p class=admonition-title>Definition (Infimum and Supremum, 上下确界).</p><p>Suppose <span class="math inline">\(\{A_n\}_{n=1}^{\infty}\)</span> is a sequence of sets.</p><p>Define：</p><p><span class="math display">\[\text{(All except finitely often, a.e.f.o.)} \quad
@@ -75,8 +75,8 @@
 </span></span><span class=line><span class=cl>二、Proposition, Remark 使用 \{\{% admonition info &#34;Definition XXX&#34; %\}\} \{\{% /admonition %\}\}
 </span></span></code></pre></td></tr></table></div></div></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
 <span class=item-content>Ren Zhenyu (Based on Professor Zhang Yiying's lectures)</span></p><p class=copyright-item><span class=item-title>LastMod</span>
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+<!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>Wireless Channel Trouble-Shooting - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),"><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/post/channel/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
+<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Wireless Channel Trouble-Shooting"><meta property="og:description" content="DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),"><meta property="og:type" content="article"><meta property="og:url" content="/post/channel/"><meta property="article:section" content="post"><meta property="article:published_time" content="2023-10-07T00:00:00+08:00"><meta property="article:modified_time" content="2023-10-07T22:59:29+08:00"><meta itemprop=name content="Wireless Channel Trouble-Shooting"><meta itemprop=description content="DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),"><meta itemprop=datePublished content="2023-10-07T00:00:00+08:00"><meta itemprop=dateModified content="2023-10-07T22:59:29+08:00"><meta itemprop=wordCount content="268"><meta itemprop=keywords content="Math,Wireless Communication,Channel Model,"><meta name=twitter:card content="summary"><meta name=twitter:title content="Wireless Channel Trouble-Shooting"><meta name=twitter:description content="DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),"><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
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+X[k]=\sum_{n=0}^{N-1}x[n]\exp\left(-\frac{\mathrm{j}2\pi kn}{N}\right)\\=\sum_{n=-\infty}^{\infty}x[n]\exp(-\mathrm j \omega n)|_{\omega=2\pi k/N}=X(e^{\mathrm j\omega})|_{\omega=2\pi k/N}\\
+x[n]=\frac{1}{N}\sum_{k=0}^{N-1}X[k]\exp\left(\frac{\mathrm j 2\pi kn}{N}\right)
+\end{cases}
+\]</span></p></li><li><p>Simple proof (Considering CIR/CFR at one time slot <span class="math inline">\(t\)</span>):</p><blockquote><p>Note that <span class="math inline">\(f_n=n\Delta f\)</span>, <span class="math inline">\(\tau_n=n\Delta t\)</span>, <span class="math inline">\(\Delta f\Delta t=1/N\)</span>. (Take a look at above DFT equations or time/frequency settings in <a href=https://www.mathworks.com/help/matlab/ref/fft.html>MATLAB Fast Fourier Transform (fft) documentation</a> example codes. )</p></blockquote><p>We have CIR in below form:</p><p><span class="math display">\[h(\tau)=\sum_{i=0}^{N-1}\alpha_0\delta(\tau-\tau_i)\rightarrow \mathbf{h}=[\alpha_0,\ldots,\alpha_{N-1}],
+\]</span></p><p>Do DFT at <span class="math inline">\(k\)</span>:</p><p><span class="math display">\[H(k)=\sum_{n=0}^{N-1}\alpha_n\exp(-\frac{\mathrm{j2\pi kn}}{N})
+\]</span></p><p>Substitute <span class="math inline">\(k\)</span> with <span class="math inline">\(f\)</span> at the left of, and substitute <span class="math inline">\(k\)</span> with <span class="math inline">\(f/\Delta f\)</span> at the right side of the equation, we have:</p><p><span class="math display">\[\begin{aligned}
+H(f)&=\sum_{n=0}^{N-1}\alpha_n\exp(-\frac{\mathrm{j2\pi f/\Delta f n}}{N}) \\
+&\xlongequal[]{\Delta f =1/(N\Delta t)}\sum_{n=0}^{N-1}\alpha_n\exp(-\mathrm{j2\pi f\tau_n})
+\end{aligned}
+\]</span></p></li></ul></li><li><p>Channel State Information (CSI): <span class="math inline">\(H(t,f)\)</span>. (CSI is actually discrete time series of discrete CFR!)</p><ul><li><span class="math inline">\(t\)</span>: CSI packet timestamp.</li><li><span class="math inline">\(f\)</span>: OFDM subcarrier frequency.</li><li>Sometimes there is an extra space dimension in CSI Matrix which refers to Tx and Rx antenna pairs.</li></ul></li><li><p>一个靠谱的知乎问题：<a href=https://www.zhihu.com/question/315208907/answer/2742955196>在通信专业里的时域，频域，空域，角域到底都有怎样的联系呢？</a></p></li></ul><h1 id=widebandnarrowband-channel-models>Wideband/Narrowband Channel Models</h1><p>To be updated tomorrow (2023.10.7)&mldr;</p></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
+<span class=item-content>Ren Zhenyu</span></p><p class=copyright-item><span class=item-title>LastMod</span>
+<span class=item-content>2023-10-07
+<a href=https://github.com/rzy0901/rzy0901.github.io/commit/4e4928d6f7c9cbccfe040c873c5c8b7bf5e562e3 title="update new post channel.md">(4e4928d)</a></span></p><p class=copyright-item><span class=item-title>License</span>
+<span class=item-content>MIT</span></p></div><footer class=post-footer><div class=post-tags><a href=/tags/math/>Math</a>
+<a href=/tags/wireless-communication/>Wireless Communication</a>
+<a href=/tags/channel-model/>Channel Model</a></div><nav class=post-nav><a class=next href=/post/rcs/><span class="next-text nav-default">Notes for Bistatic Radar Cross Section (RCS)</span>
+<span class="next-text nav-mobile">Next</span>
+<i class="iconfont icon-right"></i></a></nav></footer></article></div><script src=https://utteranc.es/client.js repo=rzy0901/blog-comment issue-term=pathname theme=github-light crossorigin=anonymous async></script><noscript>Please enable JavaScript to view the <a href=https://github.com/utterance>comments powered by utterances.</a></noscript></div></main><footer id=footer class=footer><div class=social-links><a href=mailto:renzy2022@mail.sustech.edu.cn class="iconfont icon-email" title=email></a>
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diff --git a/post/dark-mode/index.html b/post/dark-mode/index.html
index ebb3a86..5b77d55 100644
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@@ -1,5 +1,5 @@
 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>在Hugo theme-even上简单实现暗黑模式 - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="暗黑模式介绍 Hugo的even主题在github已经两年没有更新了，我应该是第一个为该主题提供暗黑模式的人（但是由于在手机端还有bug，我暂"><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/post/dark-mode/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
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+<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="在Hugo theme-even上简单实现暗黑模式"><meta property="og:description" content="暗黑模式介绍 Hugo的even主题在github已经两年没有更新了，我应该是第一个为该主题提供暗黑模式的人（但是由于在手机端还有bug，我暂"><meta property="og:type" content="article"><meta property="og:url" content="/post/dark-mode/"><meta property="article:section" content="post"><meta property="article:published_time" content="2022-11-05T00:00:00+08:00"><meta property="article:modified_time" content="2023-10-07T22:59:29+08:00"><meta itemprop=name content="在Hugo theme-even上简单实现暗黑模式"><meta itemprop=description content="暗黑模式介绍 Hugo的even主题在github已经两年没有更新了，我应该是第一个为该主题提供暗黑模式的人（但是由于在手机端还有bug，我暂"><meta itemprop=datePublished content="2022-11-05T00:00:00+08:00"><meta itemprop=dateModified content="2023-10-07T22:59:29+08:00"><meta itemprop=wordCount content="1531"><meta itemprop=keywords content="Hugo,"><meta name=twitter:card content="summary"><meta name=twitter:title content="在Hugo theme-even上简单实现暗黑模式"><meta name=twitter:description content="暗黑模式介绍 Hugo的even主题在github已经两年没有更新了，我应该是第一个为该主题提供暗黑模式的人（但是由于在手机端还有bug，我暂"><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
 <script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
 <span></span>
 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>在Hugo theme-even上简单实现暗黑模式</h1><div class=post-meta><span class=post-time>2022-11-05</span><div class=post-category><a href=/categories/diary/>diary</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class="post-toc-content always-active"><nav id=TableOfContents><ul><li><a href=#暗黑模式介绍>暗黑模式介绍</a></li><li><a href=#零前端基础具体代码实现-copy>零前端基础具体代码实现 (Copy!)</a></li></ul></nav></div></div><div class=post-content><h1 id=暗黑模式介绍>暗黑模式介绍</h1><blockquote><ul><li><p>Hugo的<a href=https://github.com/olOwOlo/hugo-theme-even>even</a>主题在github已经两年没有更新了，我应该是第一个为该主题提供暗黑模式的人（<del>但是由于在手机端还有bug，我暂时还不想发起pull request，不过大家可以随便的copy我的代码并做出改进发起PR😄。</del>）</p></li><li><p><font color=red><strong>2023.4.10更新：</strong> 添加了移动端的暗黑模式显示，见<a href=https://github.com/rzy0901/rzy0901.github.io/commit/1c4874d94dd61f918c7fd27edd6574b379abfd23>commit: update mobile dark mode</a>，这意味着暗黑模式的全部bug已经得到解决，有时间我打算向<a href=https://github.com/olOwOlo/hugo-theme-even>even</a>发起PR（虽然似乎even的作者失踪了）。</font></p></li><li><p>最近试了很多方法，终于简单的在浏览器端实现了dark mode（点击右上角导航栏里的图标即可）。</p><img src=/dark-mode.assets/200128941-81d53c52-010f-4bd6-9dc7-5933291c5ecd.png alt=image style=zoom:50%></li></ul></blockquote><p><img src=/dark-mode.assets/GIF.gif alt></p><h1 id=零前端基础具体代码实现-copy>零前端基础具体代码实现 (Copy!)</h1><p>作为一个只会<code>matlab</code>和<code>cpp</code>语言的通信人，<strong>在零css，js等计算机前端基础下</strong>，我是怎么实现的呢？答案很简单，就是不断的copy代码，像写<code>latex</code>一样地写网页。</p><p>首先，我们注意到chrome浏览器中有一个很好用的插件, 这意味着我们只要copy这个插件的源码就可以了。所以我实现的代码流程如下（具体间<a href=https://github.com/rzy0901/rzy0901.github.io/commit/c08c69da33ab361368fcb64dba066c15dd6d5fbd>commit: Add Dark Theme feature.</a>）：</p><ol><li>为even主题<code>/themes/even/layouts/partials/head.html</code>添加<code>fontawsome</code>的<code>css</code>代码（之前有试过官网推荐的引用js代码的方式，虽然也可行，但是加载太慢，不推荐）:</li></ol><div class=highlight><div class=chroma><table class=lntable><tr><td class=lntd><pre tabindex=0 class=chroma><code><span class=lnt>1
@@ -190,8 +190,8 @@
 </span></span><span class=line><span class=cl><span class=p>&lt;/</span><span class=nt>script</span><span class=p>&gt;</span> 
 </span></span></code></pre></td></tr></table></div></div><div class=footnotes role=doc-endnotes><hr><ol><li id=fn:1><p><a href=https://zhuanlan.zhihu.com/p/363949798>https://zhuanlan.zhihu.com/p/363949798</a>&#160;<a href=#fnref:1 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li></ol></div></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
 <span class=item-content>Ren Zhenyu</span></p><p class=copyright-item><span class=item-title>LastMod</span>
-<span class=item-content>2023-07-28
-<a href=https://github.com/rzy0901/rzy0901.github.io/commit/26d040134046fdac5c97f50746bf0de27523a99d title="Update rcs.md">(26d0401)</a></span></p></div><div class=post-reward><input type=checkbox name=reward id=reward hidden>
+<span class=item-content>2023-10-07
+<a href=https://github.com/rzy0901/rzy0901.github.io/commit/4e4928d6f7c9cbccfe040c873c5c8b7bf5e562e3 title="update new post channel.md">(4e4928d)</a></span></p></div><div class=post-reward><input type=checkbox name=reward id=reward hidden>
 <label class=reward-button for=reward>Reward</label><div class=qr-code><label class=qr-code-image for=reward><img class=image src=/reward/wechat_pay.jpg>
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diff --git a/post/ielts/index.html b/post/ielts/index.html
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@@ -1,11 +1,11 @@
 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>Self Learning Notes for IELTS - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/post/ielts/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>Self Learning Notes for IELTS</h1><div class=post-meta><span class=post-time>2023-01-17</span><div class=post-category><a href=/categories/notes/>notes</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class="post-toc-content always-active"><nav id=TableOfContents><ul><li><a href=#speaking>Speaking</a><ul><li><a href=#speaking-part-1>Speaking Part 1</a><ul><li><a href=#library>Library</a></li><li><a href=#work-or-studies>Work or studies</a></li></ul></li><li><a href=#speaking-part-2>Speaking Part 2</a></li></ul></li></ul></nav></div></div><div class=post-content><h1 id=speaking>Speaking</h1><h2 id=speaking-part-1>Speaking Part 1</h2><h3 id=library>Library</h3><ul><li><p><code>Do you often go to the library？</code></p><p>Yes, I go to the library pretty often. After one day of lessons, I usually go to the library to finish my homework. Because I think library is a great and quiet place for me to focus on my homework and maximize my productivity.</p></li><li><p><code>What do you usually do in the library？</code></p><p>I think this is uncertain. But most of time, I&rsquo;ll complete my homework or do some course project in the library. Sometimes, I&rsquo;ll also borrow some books that related to my courses and research.</p></li><li><p><code>Did you go to the library when you were a kid？</code></p><p>Yes, I went to the library when I was a kid. When I was young, I went to library to borrow some story books. And I read both English and Chinese books. And this helps me a lot to improve vocabulary and grammar.</p></li><li><p><code>Do Chinese kids often go to the library？</code></p><p>Yes, I think this is a quite often phenomenon for Chinese kids. For example, the library in my school is always packed and busy, especially when during the school&rsquo;s examination period. Young students often do their homework in the library. Sometime, they might borrow some books related to their courses or exams.</p></li></ul><h3 id=work-or-studies>Work or studies</h3><ul><li><p><code>What subjects are you studying?</code></p><p>I&rsquo;m now majoring in communication engineering. It is a very useful and practical subject since I need to do lots of work that highly related to real word, such as programming codes.</p></li><li><p><code>Do you like your subject?</code></p><p>Yes, definitely I love my subject. Because I have been dreaming to be an engineer since my childhood. And my major gives me lots of confidence and I feel like I&rsquo;m getting closer to my dream.</p></li><li><p><code>Why did you choose to study that subject?</code></p><p>I think the main reason is that I&rsquo;m really interested in communication engineering. You know, the interest is always the best teacher. And I could also meet people share the same interest through selecting this subject.</p></li><li><p><code>Is it very interesting?</code></p><p>Yes, it is of course very interesting. Communication Engineering mainly studies the modern way for information transmission. A typical real world application example is Wi-Fi, the wireless local network. You can regard my major as the basic connection layer of modern internet.</p></li><li><p><code>Do you prefer to study in the morning or in the afternoon?</code></p><p>Well, I would like to study in the morning because I could feel more energetic in the morning after a good night&rsquo;s sleep.</p></li><li><p><code>Are you looking forward to working?</code></p><p>Yeah. I&rsquo;m looking forward to working. Because working could offer me a chance to turn my knowledge that learning at university into real practice. And I&rsquo;ll also enjoy the feeling that I can get paid from what I love doing.</p></li><li><p><code>What technology do you use when you study?</code></p><p>Well, as far as I&rsquo;m concerned, I&rsquo;d like to write my notes online using a laptop, because I thinking electronic notes are easier to recap than hand notes after a long time.</p></li><li><p><code>What work do you do?</code></p><p>I&rsquo;m now currently a master student that majoring in communication engineering. So I&rsquo;ll probably become an engineer in the future.</p></li><li><p><code>Why did you choose to do that type of job?</code></p><p>The most important reason is that I&rsquo;m really interested in my major, communication engineering. So I am able to put the knowledge that I gained at university into practice. And also, this type of job is very well-paid.</p></li><li><p><code>Do you like your job?</code></p><p>Yeah, I do like it. Because my job is highly related with mathematics and computer science. I think it is very challenging and interesting.</p></li><li><p><code>Is it very interesting?</code></p><p>Yes, it is very interesting since it provides me an opportunity to convert abstract theory learnt at university or some other tiny inspirations into real-world practice. For example, some times I might program some codes to interpret some mathematical expressions. I really enjoy that process.</p></li><li><p><code>Do you miss being a student?</code></p><p>Yes, I miss the period that I was an undergraduate student. Although at that time, I had heavy workload, I really enjoy the great studying atmosphere that I could learn new things and discuss new things everyday with classmates or teacher.</p></li><li><p><code>What technology do you use at work?</code></p><p>To be honest, I think &ldquo;online-meeting&rdquo; app is the most frequently used technology for me at work. This offers me an opportunity that I only need to use a computer or a phone to send some work emails and then I can handle lots of things.</p></li><li><p><code>Who helps you the most? And How?</code></p><p>Well, I think the person who helps me most is my tutor at university. He instructs me how to be a real researcher and do things that really make sense. I really appreciate him.</p></li></ul><h2 id=speaking-part-2>Speaking Part 2</h2></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
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+<span class=item-content>2023-10-07
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 <link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Posts"><meta property="og:description" content="Ren Zhenyu's Website."><meta property="og:type" content="website"><meta property="og:url" content="/post/"><meta itemprop=name content="Posts"><meta itemprop=description content="Ren Zhenyu's Website."><meta name=twitter:card content="summary"><meta name=twitter:title content="Posts"><meta name=twitter:description content="Ren Zhenyu's Website."><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
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-<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><section id=archive class=archive><div class=archive-title><span class=archive-post-counter>9 Posts In Total</span></div><div class=collection-title><h2 class=archive-year>2023</h2></div><div class=archive-post><span class=archive-post-time>05-15</span>
+<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><section id=archive class=archive><div class=archive-title><span class=archive-post-counter>10 Posts In Total</span></div><div class=collection-title><h2 class=archive-year>2023</h2></div><div class=archive-post><span class=archive-post-time>10-07</span>
+<span class=archive-post-title><a href=/post/channel/ class=archive-post-link>Wireless Channel Trouble-Shooting</a></span></div><div class=archive-post><span class=archive-post-time>05-15</span>
 <span class=archive-post-title><a href=/post/rcs/ class=archive-post-link>Notes for Bistatic Radar Cross Section (RCS)</a></span></div><div class=archive-post><span class=archive-post-time>03-12</span>
 <span class=archive-post-title><a href=/post/opencv-gpu/ class=archive-post-link>Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录</a></span></div><div class=archive-post><span class=archive-post-time>01-17</span>
 <span class=archive-post-title><a href=/post/ielts/ class=archive-post-link>Self Learning Notes for IELTS</a></span></div><div class=collection-title><h2 class=archive-year>2022</h2></div><div class=archive-post><span class=archive-post-time>11-05</span>
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-<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Posts on Ren Zhenyu's Website</title><link>/post/</link><description>Recent content in Posts on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Mon, 15 May 2023 00:00:00 +0800</lastBuildDate><atom:link href="/post/index.xml" rel="self" type="application/rss+xml"/><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Posts on Ren Zhenyu's Website</title><link>/post/</link><description>Recent content in Posts on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 07 Oct 2023 00:00:00 +0800</lastBuildDate><atom:link href="/post/index.xml" rel="self" type="application/rss+xml"/><item><title>Wireless Channel Trouble-Shooting</title><link>/post/channel/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/post/channel/</guid><description>DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),</description></item><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
 RCS Definition1 The RCS represents an equivalent aperture surface area of the target, which captures a certain amount of incident radiation, and which, if re-radiated isotropically, would produce an equivalent scattered field at the receiver.
 For 2d target:
 \[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}.</description></item><item><title>Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录</title><link>/post/opencv-gpu/</link><pubDate>Sun, 12 Mar 2023 11:10:39 +0800</pubDate><guid>/post/opencv-gpu/</guid><description/></item><item><title>Self Learning Notes for IELTS</title><link>/post/ielts/</link><pubDate>Tue, 17 Jan 2023 10:35:32 +0800</pubDate><guid>/post/ielts/</guid><description/></item><item><title>在Hugo theme-even上简单实现暗黑模式</title><link>/post/dark-mode/</link><pubDate>Sat, 05 Nov 2022 00:00:00 +0800</pubDate><guid>/post/dark-mode/</guid><description>暗黑模式介绍 Hugo的even主题在github已经两年没有更新了，我应该是第一个为该主题提供暗黑模式的人（但是由于在手机端还有bug，我暂</description></item><item><title>基于深度摄像机ZED 2i提取导出三维人体骨骼</title><link>/post/zed/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/post/zed/</guid><description>ZED SDK 安装，功能参考实现链接：ZED SDK Documentations以及Body Tracking Overview。 3D Body Tracking需要CUDA11.1以上</description></item><item><title>OpenPose初使用: CV的方法提取人体骨骼</title><link>/post/openpose/</link><pubDate>Thu, 06 Oct 2022 00:00:00 +0800</pubDate><guid>/post/openpose/</guid><description>OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV</description></item><item><title>Linux Summary</title><link>/post/linux/</link><pubDate>Thu, 12 May 2022 00:00:00 +0800</pubDate><guid>/post/linux/</guid><description>Linux Summary windows双系统干净删除Ubuntu 磁盘管理 删除卷。 CMD： 1 2 3 4 5 6 diskpart list disk select disk 0 list partition select partition 1 assign letter = j 管理员权限打开记事本，删除J/</description></item><item><title>Notebook for Applied Stochastic Processes</title><link>/post/asp/</link><pubDate>Tue, 22 Feb 2022 00:00:00 +0800</pubDate><guid>/post/asp/</guid><description>info This is a collection of my notes for SUSTech MA208 &amp;ldquo;Applied Stochastic Processes&amp;rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&amp;rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为</description></item><item><title>Intoduction（写在前面）</title><link>/post/introduction/</link><pubDate>Tue, 18 Jan 2022 23:09:36 +0800</pubDate><guid>/post/introduction/</guid><description>Why I set up such a Personal Website1 Firstly, from the point of view as a student, I think it is necessary for me to build up a private place to record and manage my notes (or some other things) efficiently. In the past three years of my undergraduate student career, I could always dig some interesting ideas almost every day but not always had a chance (or a good</description></item></channel></rss>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>Intoduction（写在前面）</h1><div class=post-meta><span class=post-time>2022-01-18</span><div class=post-category><a href=/categories/diary/>Diary</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class=post-toc-content><nav id=TableOfContents><ul><li><a href=#why-i-set-up-such-a-personal-website1>Why I set up such a Personal Website</a></li><li><a href=#what-is-next>What is next?</a></li></ul></nav></div></div><div class=post-content><h1 id=why-i-set-up-such-a-personal-website1>Why I set up such a Personal Website<sup id=fnref:1><a href=#fn:1 class=footnote-ref role=doc-noteref>1</a></sup></h1><ul><li>Firstly, from the point of view as a student, I think it is necessary for me to build up a private place to <code>record and manage my notes </code>(or some other things) efficiently. In the past three years of my undergraduate student career, I could always dig some interesting ideas almost every day but not always had a chance (or a good &lsquo;util&rsquo;) to record them. For example, I learned lots of new things in the school every day and sometimes I might write some handwirtten notes to record them. But the fact is that I always dropped them in few days or throwed them in the trash because of poor readability in the next Semesters. Personal website offers me a direction to record my thoughts more fancily that maybe I shall still find my blogs useful and interesting even in many years later.</li><li>Secondly, on the other hand, as a researcher or a candidate persuing a job/degree, it&rsquo;s also important to set up some extra platform to <code>show your research interests or professional skills</code>, in addition to using a Curriculum Vitae (CV). And writing techical blogs seems to be one of the optimal solutions.</li><li>As far as I&rsquo;m concerned, I had been planning for buidling up a personal website for a very long time. And this website is actually the third version of my personal website. And during this process, I also helped my senior schoolmate &lsquo;Hawkyo&rsquo; to use GitHub and build up a website: <a href=https://haoqiuxiong.github.io/>HaoQiu Xiong</a>. I am very proud of it.</li><li>Of course, I also want to improve my English writing skills by writing blogs😄.</li></ul><details><summary><li>点击这里查看中文翻译版本。</li></summary><font color=gray>&nbsp; &nbsp;&nbsp; &nbsp; 首先，从一个学生的角度来看，我认为有必要建立一个“私人空间”来有效地记录和管理我的笔记（或其他一些东西）。在我过去三年的本科生生涯中，我几乎每天都能发现一些有趣的想法，但并不总是有机会（或有一个好的 "工具"）来记录它们。例如，我每天在学校学到很多新东西，有时我可能会写一些手写的笔记来记录它们。但事实上，我总是在几天内就把它们丢失，或者不再看它们（由于手写笔记的较差可读性）。个人网站为我提供了一个方向来解决这个问题，让我可以更“优雅地”地记录我的想法，并让我几年后重读我的笔记还会有一个很好的体验。<br>&nbsp; &nbsp;&nbsp; &nbsp;其次，另一方面，作为一名研究人员或正在申请工作/学位的候选人，除了使用简历（Curriculum Vitae）之外，建立一些额外的平台来展示你的研究兴趣或专业技能也很重要。而撰写科技博客似乎是最佳的解决方案之一。<br>&nbsp; &nbsp;&nbsp; &nbsp;就我而言，我已经计划建立一个个人网站很长时间了。而这个网站实际上是我个人网站的第三个版本。在这个过程中，我还帮助我的学长 "Hawkyo "使用GitHub并建立了一个网站。我为这件事情感到非常自豪。<br>&nbsp; &nbsp;&nbsp; &nbsp;当然，我也想通过撰写博客提高我的英语写作能力。</font></details><h1 id=what-is-next>What is next?</h1><p>1️⃣ I will keep maintaining this website.</p><p>2️⃣ I will record my</p><ul><li><p>Notes for the lectures,</p></li><li><p>Notes for self-learnings,</p></li><li><p>Projects, Critical thoughts, Daily life and etc.,</p><p>in this website.</p></li></ul></font><div class=footnotes role=doc-endnotes><hr><ol><li id=fn:1><p>This website is based on <a href=https://gohugo.io/>Hugo</a> and its theme <a href=https://github.com/olOwOlo/hugo-theme-even>even</a>, deploying on GitHub using <a href=https://github.com/features/actions>GitHub Actions</a>.
 <font size=4pt>&#160;<a href=#fnref:1 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li></ol></div></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
 <span class=item-content>Ren Zhenyu</span></p><p class=copyright-item><span class=item-title>LastMod</span>
-<span class=item-content>2023-07-28
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+<span class=item-content>2023-10-07
+<a href=https://github.com/rzy0901/rzy0901.github.io/commit/4e4928d6f7c9cbccfe040c873c5c8b7bf5e562e3 title="update new post channel.md">(4e4928d)</a></span></p><p class=copyright-item><span class=item-title>License</span>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>Linux Summary</h1><div class=post-meta><span class=post-time>2022-05-12</span><div class=post-category><a href=/categories/notes/>Notes</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class="post-toc-content always-active"><nav id=TableOfContents><ul><li><a href=#linux-summary>Linux Summary</a><ul><li><a href=#windows双系统干净删除ubuntu>windows双系统干净删除Ubuntu</a></li><li><a href=#幻14安装rog-core以及桌面卡顿bug梳理>幻14安装rog-core以及桌面卡顿bug梳理</a></li><li><a href=#安装配置代理软件clash>安装配置代理软件Clash</a></li></ul></li></ul></nav></div></div><div class=post-content><h1 id=linux-summary>Linux Summary</h1><h2 id=windows双系统干净删除ubuntu>windows双系统干净删除Ubuntu</h2><ol><li><p>磁盘管理 删除卷。</p></li><li><p>CMD：</p><div class=highlight><div class=chroma><table class=lntable><tr><td class=lntd><pre tabindex=0 class=chroma><code><span class=lnt>1
@@ -40,8 +40,8 @@
 </span></code></pre></td><td class=lntd><pre tabindex=0 class=chroma><code class=language-fallback data-lang=fallback><span class=line><span class=cl>./clash -d .
 </span></span></code></pre></td></tr></table></div></div></li><li><p>设置系统的代理端口：</p><center><img src=../../linux.assets/proxy.png style=zoom:35%></center></li><li><p>访问<a href=https://clash.razord.top/>https://clash.razord.top/</a>设置代理节点。</p></li></ol></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
 <span class=item-content>Ren Zhenyu</span></p><p class=copyright-item><span class=item-title>LastMod</span>
-<span class=item-content>2023-07-28
-<a href=https://github.com/rzy0901/rzy0901.github.io/commit/26d040134046fdac5c97f50746bf0de27523a99d title="Update rcs.md">(26d0401)</a></span></p></div><footer class=post-footer><div class=post-tags><a href=/tags/linux/>Linux</a></div><nav class=post-nav><a class=prev href=/post/openpose/><i class="iconfont icon-left"></i>
+<span class=item-content>2023-10-07
+<a href=https://github.com/rzy0901/rzy0901.github.io/commit/4e4928d6f7c9cbccfe040c873c5c8b7bf5e562e3 title="update new post channel.md">(4e4928d)</a></span></p></div><footer class=post-footer><div class=post-tags><a href=/tags/linux/>Linux</a></div><nav class=post-nav><a class=prev href=/post/openpose/><i class="iconfont icon-left"></i>
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diff --git a/post/opencv-gpu/index.html b/post/opencv-gpu/index.html
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 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录 - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/post/opencv-gpu/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
-<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录"><meta property="og:description" content><meta property="og:type" content="article"><meta property="og:url" content="/post/opencv-gpu/"><meta property="article:section" content="post"><meta property="article:published_time" content="2023-03-12T11:10:39+08:00"><meta property="article:modified_time" content="2023-07-28T02:49:52+08:00"><meta itemprop=name content="Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录"><meta itemprop=description content><meta itemprop=datePublished content="2023-03-12T11:10:39+08:00"><meta itemprop=dateModified content="2023-07-28T02:49:52+08:00"><meta itemprop=wordCount content="1086"><meta itemprop=keywords content="opencv,"><meta name=twitter:card content="summary"><meta name=twitter:title content="Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录"><meta name=twitter:description content><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>Ubuntu源码编译Opencv-GPU 4.7.0踩坑记录</h1><div class=post-meta><span class=post-time>2023-03-12</span><div class=post-category><a href=/categories/notes/>notes</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class="post-toc-content always-active"><nav id=TableOfContents><ul><li><ul><li><a href=#源码编译过程>源码编译过程</a></li><li><a href=#cpython代码自动补全vscode设置>C++，Python代码自动补全vscode设置</a></li><li><a href=#c-python-cuda测试>C++, Python cuda测试</a><ul><li><a href=#c测试代码>C++测试代码</a></li><li><a href=#python测试代码>Python测试代码</a></li></ul></li></ul></li></ul></nav></div></div><div class=post-content><blockquote><ul><li><p>网上安装opencv有很多教程，但是一旦涉及到使用cuda加速的opencv DNN模型等，很多教程就毫无意义，opencv官网2.4k的issues也说明了其bug之多。</p></li><li><p>本文是作者对opencv gpu源码编译的总结。</p></li><li><p>参考教程（有些问题，但是大体思路不错）：<a href=https://learnopencv.com/opencv-dnn-with-gpu-support/>https://learnopencv.com/opencv-dnn-with-gpu-support/</a></p></li></ul></blockquote><h2 id=源码编译过程>源码编译过程</h2><ol><li><p>安装依赖。</p><div class=highlight><div class=chroma><table class=lntable><tr><td class=lntd><pre tabindex=0 class=chroma><code><span class=lnt>1
diff --git a/post/openpose/index.html b/post/openpose/index.html
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--- a/post/openpose/index.html
+++ b/post/openpose/index.html
@@ -1,5 +1,5 @@
 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>OpenPose初使用: CV的方法提取人体骨骼 - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV"><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/post/openpose/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
-<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="OpenPose初使用: CV的方法提取人体骨骼"><meta property="og:description" content="OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV"><meta property="og:type" content="article"><meta property="og:url" content="/post/openpose/"><meta property="article:section" content="post"><meta property="article:published_time" content="2022-10-06T00:00:00+08:00"><meta property="article:modified_time" content="2023-07-28T02:49:52+08:00"><meta itemprop=name content="OpenPose初使用: CV的方法提取人体骨骼"><meta itemprop=description content="OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV"><meta itemprop=datePublished content="2022-10-06T00:00:00+08:00"><meta itemprop=dateModified content="2023-07-28T02:49:52+08:00"><meta itemprop=wordCount content="133"><meta itemprop=keywords content="Linux,OpenPose,2d skeletons,opencv,"><meta name=twitter:card content="summary"><meta name=twitter:title content="OpenPose初使用: CV的方法提取人体骨骼"><meta name=twitter:description content="OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV"><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
+<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="OpenPose初使用: CV的方法提取人体骨骼"><meta property="og:description" content="OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV"><meta property="og:type" content="article"><meta property="og:url" content="/post/openpose/"><meta property="article:section" content="post"><meta property="article:published_time" content="2022-10-06T00:00:00+08:00"><meta property="article:modified_time" content="2023-10-07T22:59:29+08:00"><meta itemprop=name content="OpenPose初使用: CV的方法提取人体骨骼"><meta itemprop=description content="OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV"><meta itemprop=datePublished content="2022-10-06T00:00:00+08:00"><meta itemprop=dateModified content="2023-10-07T22:59:29+08:00"><meta itemprop=wordCount content="133"><meta itemprop=keywords content="Linux,OpenPose,2d skeletons,opencv,"><meta name=twitter:card content="summary"><meta name=twitter:title content="OpenPose初使用: CV的方法提取人体骨骼"><meta name=twitter:description content="OpenPose安装及测试环境 OpenPose官网; 参考安装教程; 注意OpenPose与Anaconda不兼容。 测试环境： Ubuntu 20.04和NV"><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
 <script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>OpenPose初使用: CV的方法提取人体骨骼</h1><div class=post-meta><span class=post-time>2022-10-06</span><div class=post-category><a href=/categories/notes/>Notes</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class="post-toc-content always-active"><nav id=TableOfContents><ul><li><ul><li><a href=#openpose安装及测试环境>OpenPose安装及测试环境</a></li><li><a href=#openpose-api-测试>OpenPose API 测试</a></li><li><a href=#openpose-python-接口测试>OpenPose Python 接口测试</a></li></ul></li></ul></nav></div></div><div class=post-content><h2 id=openpose安装及测试环境>OpenPose安装及测试环境</h2><ul><li><p><a href=https://github.com/CMU-Perceptual-Computing-Lab/openpose>OpenPose官网;</a></p></li><li><p><a href=https://yuanze.wang/posts/openpose-on-ubuntu/>参考安装教程;</a></p><ul><li><strong>注意OpenPose与Anaconda不兼容。</strong></li></ul></li><li><p>测试环境：</p><ul><li>Ubuntu 20.04和NVIDIA GeForce RTX 2060 with Max-Q D;</li><li>CUDA10.0和CuDNN7.3.1；</li><li>Python 3.8.10和OpenCV 3.4.7;</li></ul></li></ul><h2 id=openpose-api-测试>OpenPose API 测试</h2><div class=highlight><div class=chroma><table class=lntable><tr><td class=lntd><pre tabindex=0 class=chroma><code><span class=lnt>1
@@ -10,8 +10,8 @@
 </span></span><span class=line><span class=cl>python3 01_body_from_image.py
 </span></span></code></pre></td></tr></table></div></div><p><img src=../../openpose.assets/test2.png alt=test1></p></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
 <span class=item-content>Ren Zhenyu</span></p><p class=copyright-item><span class=item-title>LastMod</span>
-<span class=item-content>2023-07-28
-<a href=https://github.com/rzy0901/rzy0901.github.io/commit/26d040134046fdac5c97f50746bf0de27523a99d title="Update rcs.md">(26d0401)</a></span></p></div><footer class=post-footer><div class=post-tags><a href=/tags/linux/>Linux</a>
+<span class=item-content>2023-10-07
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diff --git a/post/rcs/index.html b/post/rcs/index.html
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 <link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Notes for Bistatic Radar Cross Section (RCS)"><meta property="og:description" content="Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
 RCS Definition1 The RCS represents an equivalent aperture surface area of the target, which captures a certain amount of incident radiation, and which, if re-radiated isotropically, would produce an equivalent scattered field at the receiver.
 For 2d target:
-\[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}."><meta property="og:type" content="article"><meta property="og:url" content="/post/rcs/"><meta property="article:section" content="post"><meta property="article:published_time" content="2023-05-15T00:00:00+08:00"><meta property="article:modified_time" content="2023-07-28T02:49:52+08:00"><meta itemprop=name content="Notes for Bistatic Radar Cross Section (RCS)"><meta itemprop=description content="Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
+\[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}."><meta property="og:type" content="article"><meta property="og:url" content="/post/rcs/"><meta property="article:section" content="post"><meta property="article:published_time" content="2023-05-15T00:00:00+08:00"><meta property="article:modified_time" content="2023-10-07T22:59:29+08:00"><meta itemprop=name content="Notes for Bistatic Radar Cross Section (RCS)"><meta itemprop=description content="Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
 RCS Definition1 The RCS represents an equivalent aperture surface area of the target, which captures a certain amount of incident radiation, and which, if re-radiated isotropically, would produce an equivalent scattered field at the receiver.
 For 2d target:
-\[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}."><meta itemprop=datePublished content="2023-05-15T00:00:00+08:00"><meta itemprop=dateModified content="2023-07-28T02:49:52+08:00"><meta itemprop=wordCount content="516"><meta itemprop=keywords content="Math,Radar,RCS,"><meta name=twitter:card content="summary"><meta name=twitter:title content="Notes for Bistatic Radar Cross Section (RCS)"><meta name=twitter:description content="Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
+\[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}."><meta itemprop=datePublished content="2023-05-15T00:00:00+08:00"><meta itemprop=dateModified content="2023-10-07T22:59:29+08:00"><meta itemprop=wordCount content="516"><meta itemprop=keywords content="Math,Radar,RCS,"><meta name=twitter:card content="summary"><meta name=twitter:title content="Notes for Bistatic Radar Cross Section (RCS)"><meta name=twitter:description content="Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
 RCS Definition1 The RCS represents an equivalent aperture surface area of the target, which captures a certain amount of incident radiation, and which, if re-radiated isotropically, would produce an equivalent scattered field at the receiver.
 For 2d target:
 \[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}."><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
@@ -36,11 +36,14 @@
 \]</span></p></li><li><p>Monostatic radar range equation (<span class="math inline">\(R_{Rx}=R_{Tx}=R\)</span>):</p><p><span class="math display">\[P_{r}=\frac{P_{t}G_tG_r \sigma_{M} \lambda^2}{(4\pi)^3R^4}.
 \]</span></p><p>Where:</p><ul><li><span class="math inline">\(P_t\)</span>, <span class="math inline">\(P_r\)</span> refer to transmit and receive power.</li><li><span class="math inline">\(G_t\)</span>, <span class="math inline">\(G_r\)</span> refer to transmit and receive antenna gain.</li><li><span class="math inline">\(\sigma_B\)</span> and <span class="math inline">\(\sigma_M\)</span> refer to bistatic and monostatic RCS.</li><li><span class="math inline">\(R_{Tx}\)</span>, <span class="math inline">\(R_{Rx}\)</span> refer to distance of transmitter-target and receiver-target.</li></ul></li></ul><div class=footnotes role=doc-endnotes><hr><ol><li id=fn:1><p>Balanis, Constantine A. <em>Advanced engineering electromagnetics</em>. John Wiley & Sons, 2012.&#160;<a href=#fnref:1 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li><li id=fn:2><p>Eigel Jr, Robert L. &ldquo;Bistatic radar cross section (RCS) characterization of complex objects.&rdquo; (1999).&#160;<a href=#fnref:2 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li><li id=fn:3><p>Kell, Robert E., &ldquo;On the Derivation of the Bistatic RCS from Monostatic Measurements,&rdquo; Proceedings of the IEEE. Vol XX No Y: 983-988, Aug 1965.&#160;<a href=#fnref:3 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li><li id=fn:4><p>Cispin, J. W. and Siegel, K. M. Methods of Radar Cross Section Analysis. New&#160;<a href=#fnref:4 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li><li id=fn:5><p>Radar Cross Section Handbook. United States, Plenum Press, 1970.&#160;<a href=#fnref:5 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a>&#160;<a href=#fnref1:5 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li><li id=fn:6><p>K. D. Trott, &ldquo;Stationary Phase Derivation for RCS of an Ellipsoid,&rdquo; in IEEE Antennas and Wireless Propagation Letters, vol. 6, pp. 240-243, 2007, doi: 10.1109/LAWP.2007.891521.&#160;<a href=#fnref:6 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a>&#160;<a href=#fnref1:6 class=footnote-backref role=doc-backlink>&#8617;&#xfe0e;</a></p></li></ol></div></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
 <span class=item-content>Ren Zhenyu</span></p><p class=copyright-item><span class=item-title>LastMod</span>
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+<span class=item-content>2023-10-07
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 <span class=item-content>MIT</span></p></div><footer class=post-footer><div class=post-tags><a href=/tags/math/>Math</a>
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 <!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>基于深度摄像机ZED 2i提取导出三维人体骨骼 - Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="ZED SDK 安装，功能参考实现链接：ZED SDK Documentations以及Body Tracking Overview。 3D Body Tracking需要CUDA11.1以上"><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/post/zed/><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
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 <span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><article class=post><header class=post-header><h1 class=post-title>基于深度摄像机ZED 2i提取导出三维人体骨骼</h1><div class=post-meta><span class=post-time>2022-10-14</span><div class=post-category><a href=/categories/notes/>Notes</a></div></div></header><div class=post-toc id=post-toc><h2 class=post-toc-title>Contents</h2><div class="post-toc-content always-active"><nav id=TableOfContents><ul><li><ul><li><a href=#zed-视频录制以及对视频后验处理流程>ZED 视频录制以及对视频后验处理流程</a></li><li><a href=#处理结果>处理结果</a></li><li><a href=#彩蛋一个男子在打拳>彩蛋：一个男子在打拳</a></li></ul></li></ul></nav></div></div><div class=post-content><blockquote><ul><li>ZED SDK 安装，功能参考实现链接：<a href=https://www.stereolabs.com/docs/>ZED SDK Documentations</a>以及<a href=https://www.stereolabs.com/docs/body-tracking/>Body Tracking Overview</a>。</li><li>3D Body Tracking需要CUDA11.1以上的版本(本文测试于CUDA11.6)以及ZED 2以上的深度摄像机（本文使用ZED 2i测试）。</li><li>如果电脑是双显卡，需设置Nvidia显卡为Primary GPU，参考：<a href=https://support.stereolabs.com/hc/en-us/articles/8422008229143-How-can-I-solve-OpenGL-issues-under-Ubuntu->How can I solve OpenGL issues under Ubuntu?</a>。</li></ul></blockquote><h2 id=zed-视频录制以及对视频后验处理流程>ZED 视频录制以及对视频后验处理流程</h2><ol><li><p>连接摄像头，首先在<code>/usr/local/zed/tools/</code>中选择ZED_Explorer软件进行录制。</p><ul><li>如果需要脚本控制录屏，可参考ZED SDK安装目录下的示例代码<code>/usr/local/zed/samples/svo\ recording/</code>中的cpp或python代码。<ul><li><code>/usr/local/zed/samples/</code>中还有很多其他示例代码，如果安装SDK时未下载，可在<a href=https://github.com/stereolabs/zed-examples>zed-examples</a>获取。</li></ul></li></ul></li><li><p>录制好的<code>.svo</code>文件会默认存放在<code>/home/&lt;username>/Documents/ZED</code>下。</p></li><li><p>对录制好的<code>.svo</code>进行后续处理，<a href=https://github.com/stereolabs/zed-examples/tree/master/body%20tracking>官方给的实时处理代码</a>不太好用，这里我进行了二次编程将三维关节点数据，以及每一祯对应的timestamp导出为MATLAB支持的<code>.mat</code>文件（代码见<a href=https://github.com/rzy0901/testZED>testZED</a>）。</p><blockquote><p>为什么不使用官方的实时处理代码：</p><ul><li>官方的实时处理代码并没有将keypoints导出到文件。</li><li>即使对实时处理的代码再次编程导出keypoints信息，由于实时处理的特性，大量祯的keypoints信息会被丢弃，而估计出的timestamp由于代码处理时间过长也会出错。</li><li>先录制<code>.svo</code>文件，后验的处理<code>.svo</code>不会出现以上问题。</li></ul></blockquote></li></ol><h2 id=处理结果>处理结果</h2><blockquote><p>2022-11-26 更新：安装最新的SDK并在安装时选择对模型进行优化，可以得到更好的tracking效果。</p></blockquote><ul><li><p>将.dat导入MATLAB处理结果：</p><ul><li><p>Walk:</p><table><thead><tr><th><img src="https://github.com/rzy0901/testZED/blob/main/README.assets/walk1.gif?raw=true" alt></th><th><img src="https://github.com/rzy0901/testZED/blob/main/README.assets/walk2.gif?raw=true" alt></th></tr></thead></table></li><li><p>Run：</p><table><thead><tr><th><img src="https://github.com/rzy0901/testZED/blob/main/README.assets/run1.gif?raw=true" alt></th><th><img src="https://github.com/rzy0901/testZED/blob/main/README.assets/run2.gif?raw=true" alt></th></tr></thead></table></li><li><p>Squat:</p><table><thead><tr><th><img src="https://github.com/rzy0901/testZED/blob/main/README.assets/squat.gif?raw=true" alt></th></tr></thead></table></li></ul></li></ul><h2 id=彩蛋一个男子在打拳>彩蛋：一个男子在打拳</h2><center><img src=../../zed.assets/lqr.png alt=test1 style=zoom:25%></center></br><center><img src=../../zed.assets/test2.gif alt=test2 style=zoom:50%></center></div><div class=post-copyright><p class=copyright-item><span class=item-title>Author</span>
 <span class=item-content>Ren Zhenyu</span></p><p class=copyright-item><span class=item-title>LastMod</span>
-<span class=item-content>2023-07-28
-<a href=https://github.com/rzy0901/rzy0901.github.io/commit/26d040134046fdac5c97f50746bf0de27523a99d title="Update rcs.md">(26d0401)</a></span></p></div><footer class=post-footer><div class=post-tags><a href=/tags/linux/>Linux</a>
+<span class=item-content>2023-10-07
+<a href=https://github.com/rzy0901/rzy0901.github.io/commit/4e4928d6f7c9cbccfe040c873c5c8b7bf5e562e3 title="update new post channel.md">(4e4928d)</a></span></p></div><footer class=post-footer><div class=post-tags><a href=/tags/linux/>Linux</a>
 <a href=/tags/openpose/>OpenPose</a>
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diff --git a/sitemap.xml b/sitemap.xml
index e2e20e3..b19434e 100644
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diff --git a/tags/channel-model/index.html b/tags/channel-model/index.html
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+<!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>Channel Model · Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="Ren Zhenyu's Website."><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/tags/channel-model/><link href=/tags/channel-model/index.xml rel=alternate type=application/rss+xml title="Ren Zhenyu's Website "><link href=/tags/channel-model/index.xml rel=feed type=application/rss+xml title="Ren Zhenyu's Website "><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
+<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Channel Model"><meta property="og:description" content="Ren Zhenyu's Website."><meta property="og:type" content="website"><meta property="og:url" content="/tags/channel-model/"><meta itemprop=name content="Channel Model"><meta itemprop=description content="Ren Zhenyu's Website."><meta name=twitter:card content="summary"><meta name=twitter:title content="Channel Model"><meta name=twitter:description content="Ren Zhenyu's Website."><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
+<script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
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+<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><section id=archive class=archive><div class="archive-title tag"><h2 class=archive-name>Channel Model</h2></div><div class=archive-post><span class=archive-post-time>2023-10-07</span>
+<span class=archive-post-title><a href=/post/channel/ class=archive-post-link>Wireless Channel Trouble-Shooting</a></span></div></section><nav class=pagination></nav></div></div></main><footer id=footer class=footer><div class=social-links><a href=mailto:renzy2022@mail.sustech.edu.cn class="iconfont icon-email" title=email></a>
+<a href=https://github.com/rzy0901 class="iconfont icon-github" title=github></a>
+<a href="https://space.bilibili.com/485868285?spm_id_from=333.1007.0.0" class="iconfont icon-bilibili" title=bilibili></a>
+<a href=/index.xml type=application/rss+xml class="iconfont icon-rss" title=rss></a></div><div class=copyright><span class=copyright-year>Copyright &copy;
+2021 -
+2023&nbsp;
+<span>Ren Zhenyu | <span class=power-by>Powered by <a class=hexo-link href=https://gohugo.io>Hugo</a></span></span></span></div></footer><div class=back-to-top id=back-to-top><i class="iconfont icon-up"></i></div></div><script type=text/javascript src=/lib/jquery/jquery-3.2.1.min.js></script>
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+<script>function createCopyButton(e){const t=document.createElement("div");t.className="copy-code",t.innerText="Copy",t.addEventListener("click",()=>copyCodeToClipboard(t,e)),addCopyButtonToDom(t,e)}async function copyCodeToClipboard(e,t){const n=t.querySelector(":last-child > .chroma > code").innerText;await navigator.clipboard.writeText(n),e.blur(),e.innerText="Copied!",setTimeout(()=>e.innerText="Copy",2e3)}function addCopyButtonToDom(e,t){t.insertBefore(e,t.firstChild);const n=document.createElement("div");n.className="highlight-wrapper",t.parentNode.insertBefore(n,t),n.appendChild(t)}var isMobile=/iPhone|iPad|iPod|Android/i.test(navigator.userAgent);isMobile||document.querySelectorAll(".highlight").forEach(e=>createCopyButton(e))</script><script>var darkMode={config:{startHour:19,endHour:7},_darkTheme:null,_modeToggle:null,_modeToggleParent:null,_modeToggleMobile:null,_modeToggleParentMobile:null,_currentHour:0,_storageKey:"dark-mode-storage",_storageByHandLastTIme:0,_storageOverdueHours:12,init:function(){this._modeToggleParent=document.getElementById("dark-mode-toggle"),this._modeToggle=document.getElementById("dark-mode-toggle-i"),this._modeToggleParentMobile=document.getElementById("dark-mode-toggle-mobile"),this._modeToggleMobile=document.getElementById("dark-mode-toggle-mobile-i"),this._darkTheme=document.getElementById("dark-mode-theme"),this._currentHour=(new Date).getHours(),this.toggleListen(),this.initMode()},initMode:function(){let e=this.getModeFromStorage();this.setMode(e)},toggleListen:function(){let e=this;this._modeToggleParent.addEventListener("click",()=>{this._modeToggle.className==="fa fa-moon-o"?e.setModeByHand("dark"):this._modeToggle.className==="fa fa-sun-o"&&e.setModeByHand("light")}),this._modeToggleParentMobile.addEventListener("click",()=>{this._modeToggleMobile.className==="fa fa-moon-o"?e.setModeByHand("dark"):this._modeToggleMobile.className==="fa fa-sun-o"&&e.setModeByHand("light")})},autoMode:function(){let e=this._currentHour;return e>this.config.startHour||e<this.config.endHour?"dark":"light"},setMode:function(e){e==="dark"?(this._darkTheme.disabled=!1,this._modeToggle.className="fa fa-sun-o",this._modeToggleMobile.className="fa fa-sun-o"):e==="light"&&(this._darkTheme.disabled=!0,this._modeToggle.className="fa fa-moon-o",this._modeToggleMobile.className="fa fa-moon-o")},setModeByHand:function(e){this.setMode(e),this.setModeToStorage(e)},setModeToStorage:function(e){localStorage.setItem(this._storageKey,e),localStorage.setItem(this._storageKey+"-last-time",(new Date).getTime())},getModeFromStorage:function(){let t=localStorage.getItem(this._storageKey),e=localStorage.getItem(this._storageKey+"-last-time");if(t&&e){e=e/1e3;let n=(new Date).getTime()/1e3,s=this._storageOverdueHours*3600;if(n-e<s)return t}return localStorage.removeItem(this._storageKey),localStorage.removeItem(this._storageKey+"-last-time"),!1}};darkMode.init()</script></body></html>
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diff --git a/tags/channel-model/index.xml b/tags/channel-model/index.xml
new file mode 100644
index 0000000..2f8080f
--- /dev/null
+++ b/tags/channel-model/index.xml
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Channel Model on Ren Zhenyu's Website</title><link>/tags/channel-model/</link><description>Recent content in Channel Model on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 07 Oct 2023 00:00:00 +0800</lastBuildDate><atom:link href="/tags/channel-model/index.xml" rel="self" type="application/rss+xml"/><item><title>Wireless Channel Trouble-Shooting</title><link>/post/channel/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/post/channel/</guid><description>DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),</description></item></channel></rss>
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diff --git a/tags/channel-model/page/1/index.html b/tags/channel-model/page/1/index.html
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+++ b/tags/channel-model/page/1/index.html
@@ -0,0 +1 @@
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diff --git a/tags/index.html b/tags/index.html
index f4368ac..ba7ce88 100644
--- a/tags/index.html
+++ b/tags/index.html
@@ -2,18 +2,20 @@
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 <script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
 <span></span>
-<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><div class=terms><div class=terms-title>11 Tags In Total</div><div class=terms-tags><a class=terms-link href=/tags/linux/>linux
+<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><div class=terms><div class=terms-title>13 Tags In Total</div><div class=terms-tags><a class=terms-link href=/tags/linux/>linux
+<span class=terms-count>3</span></a>
+<a class=terms-link href=/tags/math/>math
 <span class=terms-count>3</span></a>
 <a class=terms-link href=/tags/opencv/>opencv
 <span class=terms-count>3</span></a>
-<a class=terms-link href=/tags/math/>math
-<span class=terms-count>2</span></a>
 <a class=terms-link href=/tags/openpose/>openpose
 <span class=terms-count>2</span></a>
 <a class=terms-link href=/tags/2d-skeletons/>2d-skeletons
 <span class=terms-count>1</span></a>
 <a class=terms-link href=/tags/3d-skeletons/>3d-skeletons
 <span class=terms-count>1</span></a>
+<a class=terms-link href=/tags/channel-model/>channel-model
+<span class=terms-count>1</span></a>
 <a class=terms-link href=/tags/diary/>diary
 <span class=terms-count>1</span></a>
 <a class=terms-link href=/tags/hugo/>hugo
@@ -23,6 +25,8 @@
 <a class=terms-link href=/tags/radar/>radar
 <span class=terms-count>1</span></a>
 <a class=terms-link href=/tags/rcs/>rcs
+<span class=terms-count>1</span></a>
+<a class=terms-link href=/tags/wireless-communication/>wireless-communication
 <span class=terms-count>1</span></a></div></div></div></div></main><footer id=footer class=footer><div class=social-links><a href=mailto:renzy2022@mail.sustech.edu.cn class="iconfont icon-email" title=email></a>
 <a href=https://github.com/rzy0901 class="iconfont icon-github" title=github></a>
 <a href="https://space.bilibili.com/485868285?spm_id_from=333.1007.0.0" class="iconfont icon-bilibili" title=bilibili></a>
diff --git a/tags/index.xml b/tags/index.xml
index ae911ab..a761799 100644
--- a/tags/index.xml
+++ b/tags/index.xml
@@ -1 +1 @@
-<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Tags on Ren Zhenyu's Website</title><link>/tags/</link><description>Recent content in Tags on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Mon, 15 May 2023 00:00:00 +0800</lastBuildDate><atom:link href="/tags/index.xml" rel="self" type="application/rss+xml"/><item><title>Math</title><link>/tags/math/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/tags/math/</guid><description/></item><item><title>Radar</title><link>/tags/radar/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/tags/radar/</guid><description/></item><item><title>RCS</title><link>/tags/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/tags/rcs/</guid><description/></item><item><title>opencv</title><link>/tags/opencv/</link><pubDate>Sun, 12 Mar 2023 11:10:39 +0800</pubDate><guid>/tags/opencv/</guid><description/></item><item><title>ielts</title><link>/tags/ielts/</link><pubDate>Tue, 17 Jan 2023 10:35:32 +0800</pubDate><guid>/tags/ielts/</guid><description/></item><item><title>Hugo</title><link>/tags/hugo/</link><pubDate>Sat, 05 Nov 2022 00:00:00 +0800</pubDate><guid>/tags/hugo/</guid><description/></item><item><title>3d skeletons</title><link>/tags/3d-skeletons/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/3d-skeletons/</guid><description/></item><item><title>Linux</title><link>/tags/linux/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/linux/</guid><description/></item><item><title>OpenPose</title><link>/tags/openpose/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/openpose/</guid><description/></item><item><title>2d skeletons</title><link>/tags/2d-skeletons/</link><pubDate>Thu, 06 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/2d-skeletons/</guid><description/></item><item><title>Diary</title><link>/tags/diary/</link><pubDate>Tue, 18 Jan 2022 23:09:36 +0800</pubDate><guid>/tags/diary/</guid><description/></item></channel></rss>
\ No newline at end of file
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Tags on Ren Zhenyu's Website</title><link>/tags/</link><description>Recent content in Tags on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 07 Oct 2023 00:00:00 +0800</lastBuildDate><atom:link href="/tags/index.xml" rel="self" type="application/rss+xml"/><item><title>Channel Model</title><link>/tags/channel-model/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/tags/channel-model/</guid><description/></item><item><title>Math</title><link>/tags/math/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/tags/math/</guid><description/></item><item><title>Wireless Communication</title><link>/tags/wireless-communication/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/tags/wireless-communication/</guid><description/></item><item><title>Radar</title><link>/tags/radar/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/tags/radar/</guid><description/></item><item><title>RCS</title><link>/tags/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/tags/rcs/</guid><description/></item><item><title>opencv</title><link>/tags/opencv/</link><pubDate>Sun, 12 Mar 2023 11:10:39 +0800</pubDate><guid>/tags/opencv/</guid><description/></item><item><title>ielts</title><link>/tags/ielts/</link><pubDate>Tue, 17 Jan 2023 10:35:32 +0800</pubDate><guid>/tags/ielts/</guid><description/></item><item><title>Hugo</title><link>/tags/hugo/</link><pubDate>Sat, 05 Nov 2022 00:00:00 +0800</pubDate><guid>/tags/hugo/</guid><description/></item><item><title>3d skeletons</title><link>/tags/3d-skeletons/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/3d-skeletons/</guid><description/></item><item><title>Linux</title><link>/tags/linux/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/linux/</guid><description/></item><item><title>OpenPose</title><link>/tags/openpose/</link><pubDate>Fri, 14 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/openpose/</guid><description/></item><item><title>2d skeletons</title><link>/tags/2d-skeletons/</link><pubDate>Thu, 06 Oct 2022 00:00:00 +0800</pubDate><guid>/tags/2d-skeletons/</guid><description/></item><item><title>Diary</title><link>/tags/diary/</link><pubDate>Tue, 18 Jan 2022 23:09:36 +0800</pubDate><guid>/tags/diary/</guid><description/></item></channel></rss>
\ No newline at end of file
diff --git a/tags/math/index.html b/tags/math/index.html
index 5306b58..ba873f6 100644
--- a/tags/math/index.html
+++ b/tags/math/index.html
@@ -2,7 +2,8 @@
 <link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Math"><meta property="og:description" content="Ren Zhenyu's Website."><meta property="og:type" content="website"><meta property="og:url" content="/tags/math/"><meta itemprop=name content="Math"><meta itemprop=description content="Ren Zhenyu's Website."><meta name=twitter:card content="summary"><meta name=twitter:title content="Math"><meta name=twitter:description content="Ren Zhenyu's Website."><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
 <script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
 <span></span>
-<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><section id=archive class=archive><div class="archive-title tag"><h2 class=archive-name>Math</h2></div><div class=archive-post><span class=archive-post-time>2023-05-15</span>
+<span></span></div><div id=dark-mode-toggle-mobile class=mobile-dark-icon><div class=text><i id=dark-mode-toggle-mobile-i class="fa fa-moon-o" style=font-size:24px></i></div></div></div><nav id=mobile-menu class="mobile-menu slideout-menu"><ul class=mobile-menu-list><a href=/><li class=mobile-menu-item>Home</li></a><a href=/post/><li class=mobile-menu-item>Archives</li></a><a href=/tags/><li class=mobile-menu-item>Tags</li></a><a href=/categories/><li class=mobile-menu-item>Categories</li></a><a href=/about/><li class=mobile-menu-item>About</li></a></ul></nav><div class=container id=mobile-panel><header id=header class=header><div class=logo-wrapper><a href=/ class=logo>Ren Zhenyu</a></div><nav class=site-navbar><ul id=menu class=menu><li class=menu-item><a class=menu-item-link href=/>Home</a></li><li class=menu-item><a class=menu-item-link href=/post/>Archives</a></li><li class=menu-item><a class=menu-item-link href=/tags/>Tags</a></li><li class=menu-item><a class=menu-item-link href=/categories/>Categories</a></li><li class=menu-item><a class=menu-item-link href=/about/>About</a></li><li class=menu-item><a id=dark-mode-toggle class=menu-item-link><i id=dark-mode-toggle-i class="fa fa-moon-o" style=font-size:24px></i></a></li></ul></nav></header><main id=main class=main><div class=content-wrapper><div id=content class=content><div class=personal-info><div style=overflow:hidden><br><div style=text-align:left;float:left><b>Author:</b> <a href=https://rzy0901.github.io>Ren Zhenyu (SID: 12232140)</a></div><div style=text-align:right><b>Affiliation:</b> Department of EEE, <a href=https://www.sustech.edu.cn/>SUSTech</a></div><div style=text-align:left;float:left><b>Email:</b> <a href=mailto:renzy2022@mail.sustech.edu.cn>renzy2022@mail.sustech.edu.cn</a></div><div style=text-align:right><b>Website:</b> <a href=https://rzy0901.github.io>https://rzy0901.github.io</a></div></div></div><section id=archive class=archive><div class="archive-title tag"><h2 class=archive-name>Math</h2></div><div class=archive-post><span class=archive-post-time>2023-10-07</span>
+<span class=archive-post-title><a href=/post/channel/ class=archive-post-link>Wireless Channel Trouble-Shooting</a></span></div><div class=archive-post><span class=archive-post-time>2023-05-15</span>
 <span class=archive-post-title><a href=/post/rcs/ class=archive-post-link>Notes for Bistatic Radar Cross Section (RCS)</a></span></div><div class=archive-post><span class=archive-post-time>2022-02-22</span>
 <span class=archive-post-title><a href=/post/asp/ class=archive-post-link>Notebook for Applied Stochastic Processes</a></span></div></section><nav class=pagination></nav></div></div></main><footer id=footer class=footer><div class=social-links><a href=mailto:renzy2022@mail.sustech.edu.cn class="iconfont icon-email" title=email></a>
 <a href=https://github.com/rzy0901 class="iconfont icon-github" title=github></a>
diff --git a/tags/math/index.xml b/tags/math/index.xml
index 9a0f43d..15bfe69 100644
--- a/tags/math/index.xml
+++ b/tags/math/index.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Math on Ren Zhenyu's Website</title><link>/tags/math/</link><description>Recent content in Math on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Mon, 15 May 2023 00:00:00 +0800</lastBuildDate><atom:link href="/tags/math/index.xml" rel="self" type="application/rss+xml"/><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Math on Ren Zhenyu's Website</title><link>/tags/math/</link><description>Recent content in Math on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 07 Oct 2023 00:00:00 +0800</lastBuildDate><atom:link href="/tags/math/index.xml" rel="self" type="application/rss+xml"/><item><title>Wireless Channel Trouble-Shooting</title><link>/post/channel/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/post/channel/</guid><description>DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),</description></item><item><title>Notes for Bistatic Radar Cross Section (RCS)</title><link>/post/rcs/</link><pubDate>Mon, 15 May 2023 00:00:00 +0800</pubDate><guid>/post/rcs/</guid><description>Radar Cross Section This document records some possible useful rcs-related equations for my simulations 😄.
 RCS Definition1 The RCS represents an equivalent aperture surface area of the target, which captures a certain amount of incident radiation, and which, if re-radiated isotropically, would produce an equivalent scattered field at the receiver.
 For 2d target:
 \[\begin{aligned} \sigma_{2d}=\begin{cases}\lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{S^s}{S^i}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|E^s|^2}{|E^i|^2}\right]\\ \lim_\limits{\rho \to \infty}\left[2\pi \rho \frac{|H^s|^2}{|H^i|^2}\right] \end{cases} \end{aligned}.</description></item><item><title>Notebook for Applied Stochastic Processes</title><link>/post/asp/</link><pubDate>Tue, 22 Feb 2022 00:00:00 +0800</pubDate><guid>/post/asp/</guid><description>info This is a collection of my notes for SUSTech MA208 &amp;ldquo;Applied Stochastic Processes&amp;rdquo;, in the spring semester of 2022, based on Professor Zhang Yiying (张艺赢)&amp;rsquo;s lectures and slides. 毕业压力好大，暂时更新了第一章，可以作为概率论知识汇总作为</description></item></channel></rss>
\ No newline at end of file
diff --git a/tags/wireless-communication/index.html b/tags/wireless-communication/index.html
new file mode 100644
index 0000000..27af58e
--- /dev/null
+++ b/tags/wireless-communication/index.html
@@ -0,0 +1,15 @@
+<!doctype html><html lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge,chrome=1"><title>Wireless Communication · Ren Zhenyu's Website</title><meta name=renderer content="webkit"><meta name=viewport content="width=device-width,initial-scale=1,maximum-scale=1"><meta http-equiv=cache-control content="no-transform"><meta http-equiv=cache-control content="no-siteapp"><meta name=theme-color content="#f8f5ec"><meta name=msapplication-navbutton-color content="#f8f5ec"><meta name=apple-mobile-web-app-capable content="yes"><meta name=apple-mobile-web-app-status-bar-style content="#f8f5ec"><meta name=author content="Ren Zhenyu"><meta name=description content="Ren Zhenyu's Website."><meta name=keywords content="Ren Zhenyu,blog"><meta name=generator content="Hugo 0.102.0-DEV with theme even"><link rel=canonical href=/tags/wireless-communication/><link href=/tags/wireless-communication/index.xml rel=alternate type=application/rss+xml title="Ren Zhenyu's Website "><link href=/tags/wireless-communication/index.xml rel=feed type=application/rss+xml title="Ren Zhenyu's Website "><link rel=apple-touch-icon sizes=180x180 href=/apple-touch-icon.png><link rel=icon type=image/png sizes=32x32 href=/favicon-32x32.png><link rel=icon type=image/png sizes=16x16 href=/favicon-16x16.png><link rel=manifest href=/manifest.json><link rel=mask-icon href=/safari-pinned-tab.svg color=#5bbad5><link href=/sass/main.min.fe129686c67d70cba5c51e881918a3eb943a21933c8a910523160ae40ac0753c.css rel=stylesheet><link rel=stylesheet href=/css/font-awesome-4.7.0/css/font-awesome.css></link>
+<link disabled id=dark-mode-theme rel=stylesheet href=/css/dark.css></link><meta property="og:title" content="Wireless Communication"><meta property="og:description" content="Ren Zhenyu's Website."><meta property="og:type" content="website"><meta property="og:url" content="/tags/wireless-communication/"><meta itemprop=name content="Wireless Communication"><meta itemprop=description content="Ren Zhenyu's Website."><meta name=twitter:card content="summary"><meta name=twitter:title content="Wireless Communication"><meta name=twitter:description content="Ren Zhenyu's Website."><!--[if lte IE 9]><script src=https://cdnjs.cloudflare.com/ajax/libs/classlist/1.1.20170427/classList.min.js></script><![endif]--><!--[if lt IE 9]><script src=https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js></script>
+<script src=https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js></script><![endif]--></head><body><div id=mobile-navbar class=mobile-navbar><div class=mobile-header-logo><a href=/ class=logo>Ren Zhenyu</a></div><div class=mobile-navbar-icon><span></span>
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+<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Wireless Communication on Ren Zhenyu's Website</title><link>/tags/wireless-communication/</link><description>Recent content in Wireless Communication on Ren Zhenyu's Website</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Sat, 07 Oct 2023 00:00:00 +0800</lastBuildDate><atom:link href="/tags/wireless-communication/index.xml" rel="self" type="application/rss+xml"/><item><title>Wireless Channel Trouble-Shooting</title><link>/post/channel/</link><pubDate>Sat, 07 Oct 2023 00:00:00 +0800</pubDate><guid>/post/channel/</guid><description>DISCLAIMER: This note is for reference only. I am not 100% sure of the accuracy of my note. If you find any errors/typos, feel free to contact me. This note records some interesting issues that I met in wireless channel modeling 😄. CIR, CFR (CSI) Conversion Channel Impulse Response (CIR): \(h(t,\tau)\); Channel Frequency Response (CFR): \(H(t,f)\). \(t\): time domain; \(\tau\): delay domain; \(f\): frequency domain. sDiscrete Fourier Transform (DFT),</description></item></channel></rss>
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Website	Description
Xiaolong Wang（王小龙）	龙兄，初中班长，高中室友，浙大自动化方向本硕（coding能力极强？？？）。
Panlong Wu（吴攀龙）	本科大佬同学，平时一起学习通信知识，香港中文大学（深圳）phd。
Weibao Fu （傅伟堡）	本科大佬同学，2021 SIGMOD竞赛世界冠军，腾讯SSP。
Haoqiu Xiong（熊浩球）	实习生学长熊博，有幸帮助他搭建了个人网页的最初版本。