An example of the impedance estimation method described in the referenced journal article is provided here.
The example has been created using MATLAB and has the name Impedance_tube_example.m
.
@article{PRINN2025110332,
title = {Validation of an eigenvalue-based inverse method for estimating locally-reacting surface impedance},
journal = {Applied Acoustics},
volume = {228},
pages = {110332},
year = {2025},
issn = {0003-682X},
doi = {https://doi.org/10.1016/j.apacoust.2024.110332},
url = {https://www.sciencedirect.com/science/article/pii/S0003682X24004833},
author = {Albert G. Prinn and Pablo Panter and Andreas Walther and Emanuël A.P. Habets},
keywords = {Resonance frequency estimation, Finite element-based eigenvalue estimation, Locally-reacting impedance estimation}
}