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Time Frequency Toolbox >> Time Frequency Toolbox > Post-Processing or Help to the Interpretation > plotsid

plotsid

Schematic interference diagram of FM signals.

Calling Sequence

plotsid(T,IFLAWS)
plotsid(T,IFLAWS,K)

Parameters

T :

a real vector of size M: the time instants,

IFLAWS :

an M by P real matrix with values in [-0.5 0.5]: each column corresponds to the instantaneous frequency law of a signal.

K :

a real scalar with possible values -1, 0, 1/2, 2 or %inf: the distribution (default : 2):

  • K=2: Wigner-Ville

  • K=1/2: D-Flandrin

  • K=0: Bertrand (unitary)

  • K=-1 Unterberger (active)

  • K=%inf: Margenhau-Hill-Rihaczek

Description

plotsid plots the schematic interference diagram of (analytic) FM signals.

Examples

Nt=90; 
[y,iflaw]=fmlin(Nt,0.05,0.25);
[y2,iflaw2]=fmconst(50,0.4);
iflaw(:,2)=[%nan*ones(10,1);iflaw2;%nan*ones(Nt-60,1)];
plotsid(1:Nt,iflaw,0);

See also

Authors


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