"An inexact augmented Lagrangian method for nonlinear dispersion curve inversion using Dix-type global linear approximation"
This Fork uses Dix-type relation operator and finite-element forward modeling for derivative-free dispersion cuve inversion based on following article:
Citation: "An inexact augmented Lagrangian method for nonlinear dispersion-curve inversion using Dix-type global linear approximation Reza Dokht Dolatabadi Esfahani, Ali Gholami, and Matthias Ohrnberger, GEOPHYSICS 2020 85:5, EN77-EN85, https://doi.org/10.1190/geo2019-0717.1"
Example:
Second example (link)