Butterworth time-frequency distribution.
[TFR,T,F]=tfrbud(X) [TFR,T,F]=tfrbud(X,T) [TFR,T,F]=tfrbud(X,T,N) [TFR,T,F]=tfrbud(X,T,N,G) [TFR,T,F]=tfrbud(X,T,N,G,H) [TFR,T,F]=tfrbud(X,T,N,G,H,SIGMA) [TFR,T,F]=tfrbud(X,T,N,G,H,SIGMA,TRACE) [TFR,T,F]=tfrbud(...,'plot')
signal if auto-BUD, or [X1,X2] if cross-BUD.
time instant(s) (default : 1:length(X)).
number of frequency bins (default : length(X)).
time smoothing window, G(0) being forced to 1. (default : Hamming(N/4)).
frequency smoothing window, H(0) being forced to 1. (default : Hamming(N/4)).
kernel width (default : 1).
if nonzero, the progression of the algorithm is shown (default : 0).
if one input parameter is 'plot', tfrbj runs tfrqview. and TFR will be plotted
time-frequency representation.
vector of normalized frequencies.
tfrbud computes the Butterworth distribution of a discrete-time signal X, or the cross Butterworth representation between two signals.