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pdscodes

Code snippets and notebooks used in PDS classes.

All (almost) codes are in Python3 language.

If you want to run the examples locally, I recomend you to use an python environment as follows:

On linux

  1. Create and enter virtual environment
  • virtualenv --clear env
  • source env/bin/activate
  1. Install adam requirements to the virtual env
  • `pip install -r requirements.txt
  1. Install plugin requirements to the virtual env
  • ufpbots example: pip install -r ufpbots/requirements.txt

Sampling and quantization

Signals and operations

Discrete Fourier

  • dft (jupyter notebook): Discrete Fourier Transform notebook
  • fft (jupyter notebook): Fast Fourier Transform notebook

Homework (Trabalhos Práticos)

All home works are jupyter notebooks. These files can be opened using google-colab.

  • TP01 - Convolução linear de duas dimensões.
  • TP02 - Efeitos de operações lineares em sinais de audio
  • TP03 - Quantização Lei-A e Lei-u
  • TP04 - Fuções de Janelamento
  • TP05 - Espectrograma
  • TP07 - Processamento e Compactação de imagem
  • TP08 - Comunicação Digital
  • TP09 - Filtragem FIR (IIR - talvez)

Auxiliary files

  • arroz e feijao: Audio wave file used in some examples (SPOLTECH audio file)
  • barbara: Image (png) file used in some examples
  • paganini: Audio wave file used in some examples (from wikimedia)
  • table notes: Image containing the frequencies of musical tones. Don't know the author.
  • transmission: Recorded example used in TP07
  • lena: Image (png) file used in TP08

TODO

  • Melhorar exemplo operations.py. Exemplo não está tão claro como deveria estar (pouco eficiente na apresentacao).
  • TP02.ipynb: Adicionar/melhorar os comentários e comandos de questões.
  • Colocar as aulas e arquivos utilizados por aula no README