sfft

 

 

[링크 : https://www.eetimes.com/fft-convolution-and-the-overlap-add-method/]

[링크 : https://uk.mathworks.com/help/signal/ref/stft.html]

s = stft(x,'OverlapLength',o,'FFTLength',nfft,'Window',ones(nfft,1),'Centered',false);

[링크 : https://kr.mathworks.com/matlabcentral/answers/470491-multiple-ffts-of-segmented-signal-with-overlapping]