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I am looking for functions for for the "S-method" or the "Choi-Williams method"

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Sherif Farahat 2023-1-28

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https://ww2.mathworks.cn/matlabcentral/answers/1902395-i-am-looking-for-functions-for-for-the-s-method-or-the-choi-williams-method

回答： Sourabh 2023-2-20

I am working on time frequency analysis using Wigner-Ville distribution using the function WVD in MATLAB.

I am wondering if there are functions for for the "S-method" or the "Choi-Williams method"? There is one function for the S-method which can be found in https://www.mathworks.com/matlabcentral/fileexchange/76268-s_method_pub but it seems not to work properly.

Thanks for help

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Sourabh 2023-2-20

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https://ww2.mathworks.cn/matlabcentral/answers/1902395-i-am-looking-for-functions-for-for-the-s-method-or-the-choi-williams-method#answer_1175555

You can try using the “spectrogram” function to compute the S-method. You can find more information about it here:

https://www.mathworks.com/help/signal/ref/spectrogram.html

As of now, there is no in-built function provided for the Choi-Williams method.

Also, you can find other functions from the following link which might serve your purpose:

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Signal Processing Signal Processing Toolbox Time-Frequency Analysis

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