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Time Frequency Toolbox >> Time Frequency Toolbox > Reassigned Time-Frequency Processing > tfrrspwv

tfrrspwv

Reassigned smoothed pseudo Wigner-Ville distribution.

Calling Sequence

[TFR,RTFR,HAT] = tfrrspwv(X)
[TFR,RTFR,HAT] = tfrrspwv(X,T)
[TFR,RTFR,HAT] = tfrrspwv(X,T,N)
[TFR,RTFR,HAT] = tfrrspwv(X,T,N,G)
[TFR,RTFR,HAT] = tfrrspwv(X,T,N,G,H)
[TFR,RTFR,HAT] = tfrrspwv(X,T,N,G,H,TRACE)
[TFR,RTFR,HAT] = tfrrspwv(...,'plot')

Parameters

X :

analysed signal.

T :

the time instant(s) (default : 1:length(X)).

N :

number of frequency bins (default : length(X)).

G :

time smoothing window, G(0) being forced to 1. (default : Hamming(N/10)).

H :

frequency smoothing window, H(0) being forced to 1 (default : Hamming(N/4)).

TRACE :

if nonzero, the progression of the algorithm is shown (default : 0).

'plot':

if one input parameter is 'plot', tfrrspwv runs tfrqview. and TFR will be plotted

TFR, :

time-frequency representation and its reassigned

RTFR :

version.

HAT :

Complex matrix of the reassignment vectors.

Description

tfrrspwv computes the smoothed pseudo Wigner-Ville distribution and its reassigned version.

Examples

sig=fmlin(128,0.05,0.15)+fmlin(128,0.3,0.4); t=1:2:128;
g=tftb_window(15,'Kaiser'); h=tftb_window(63,'Kaiser');
tfrrspwv(sig,t,64,g,h,1,'plot');

Authors

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