To scale values from Wigner-Ville Distribution to real range in Matlab

Question

I run by using the function tfrwv.m in Time-Frequency Toolbox

[B,T,F] = tfrwv(data, 1:length(data), length(data), 1);
B(1:130, :) = 0;    % remove the duplic         


        

Answer 1

I think tfrwv is equivalent to spectrogram if you use the following command.

Time-interval is t = 1/360. Choose fs = 360.5.

imagesc(T*t, F*fs, abs(B)); 

There are more peaks in tfrwv probably because the window size and overlap are different from what you used in spectrogram.

The result