FFT vs Time Plot
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Sravantej
le 6 Fév 2012
Modifié(e) : Image Analyst
le 2 Oct 2013
hi, i have a non stationary signal whose frequency is varying with time and i want to plot its FFT verses time of the signal. Can anyone explain me how to plot FFT vs Time
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Anton Semechko
le 6 Fév 2012
What you want is called short time Fourier transform. Here is as example: http://www.mathworks.com/matlabcentral/fileexchange/1553-spectrogram-short-time-ft-log-magnitude
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Anton Semechko
le 7 Fév 2012
Look at the code to see how the size of the output arguments is determined with respect to the input ...
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