Reassigned Morlet Scalogram time-frequency distribution.
[TFR,RTFR,HAT] = tfrrmsc(X) [TFR,RTFR,HAT] = tfrrmsc(X,T) [TFR,RTFR,HAT] = tfrrmsc(X,T,N) [TFR,RTFR,HAT] = tfrrmsc(X,T,N,F0T) [TFR,RTFR,HAT] = tfrrmsc(X,T,N,F0T,TRACE) [TFR,RTFR,HAT] = tfrrmsc(...,'plot')
A Nx elements vector or a Nx by 2 array signal.
the time instant(s) with elements in [1 Nx] (default : 1:length(X))
number of frequency bins (default : length(X)). For faster computation N should be a power of 2.
a positive scalar: the time-bandwidth product of the mother wavelet (default : 2.5))
A boolean (or a real scalar) if true (or nonzero),the progression of the algorithm is shown (default : %f).
if one input parameter is 'plot', tfrqview is called and the time-frequency representation will be plotted.
a N by Nt array: the time-frequency representation.
A real N by Nt array: the reassigned time-frequency representation.
a N by Nt complex matrix: the reassignment vectors.
tfrrmsc computes the Morlet scalogram and its reassigned version.
N=128; sig=fmlin(N,0.1,0.4); t=1:128; [tfr,rtfr,hat]=tfrrmsc(sig,t,N,2.1); clf;gcf().color_map= jetcolormap(128); subplot(121) grayplot(t,linspace(0,0.25,N/2),tfr(1:N/2,:)') title("TFR") subplot(122) grayplot(t,linspace(0,0.25,N/2),rtfr(1:N/2,:)') title("RTFR") | ![]() | ![]() |