time-frequency

问题 We were thinking here how to create Hamming-64 window of overlap 64. It is done by h = hamming(64); h2 = hamming(38); h = conv(h, h2); Now, we are thinking how you can apply this window function to the resulted variabels of the Wigner-Ville Distribution function of Auger et al in Time-Frequency Toolbox. The function tfrwv.m does not have any parameter for window function. So we have these variables [B,T,F] = tfrwv(data, 1:length(data), length(data)); Here is one answer to related problem, but

问题 I finally solved my problem here with lennon310 . I have a picture of thousands of thin peaks in Time-Frequency picture. I cannot see all the same time in one picture. Depending on the physical width of my time window, some windows appear and some come visible. Pictures of my data which I plot by imagesc All pictures are from the same data points T, F, B . How can you plot all peaks at once in a picture in Matlab? 回答1: You need to resize the image using resampling to prevent the aliasing

问题 I am trying to give for Wigner-Ville Distribution Hamming Window of length 64 with 60% overlap here. I can create Hamming window of length 64 by h=hamming(64); Here is some theoretical pieces of advice about the issue. The window seems to be some sort of convolution of three Hamming waves with 60% probability for convolution. The overlap seems to be some sort of convolution of three functions. My try for three windows and their overlaps conv(conv(hamming(64), hamming(64)), conv(hamming(64),