Short time Fourier transform.
[TFR,T,F]=tfrstft(X) [TFR,T,F]=tfrstft(X,T) [TFR,T,F]=tfrstft(X,T,N) [TFR,T,F]=tfrstft(X,T,N,H [TFR,T,F]=tfrstft(X,T,N,H,TRACE) [TFR,T,F]=tfrstft(...,'plot')
signal.
time instant(s) (default : 1:length(X)).
number of frequency bins (default : length(X)).
frequency smoothing window, H being normalized so as to be of unit energy. (default : Hamming(N/4)).
if nonzero, the progression of the algorithm is shown (default : 0).
if one input parameter is 'plot', tfrstft runs tfrqview. and TFR will be plotted
time-frequency decomposition (complex values). The frequency axis is graduated from -0.5 to 0.5.
vector of normalized frequencies.