<< Ambiguity plane function (C - toolbox) Ambiguity plane function (C - toolbox) Cambifunb >>

Time Frequency Toolbox >> Time Frequency Toolbox > Ambiguity plane function (C - toolbox) > Caf2tfr

Caf2tfr

From ambiguity plane to time frequency plane

Calling Sequence

TFR = Caf2tfr(AF,kernel)

Parameters

AF :

Ambiguity function of the signal

kernel :

kernel of the TFR

Description

Computes the Cohen's group Time Frequency Representation (TFR) of a signal given its ambiguity function and the kernel of the TFR. Warning : AF and kernel are matrices of the same size and quadratic!

Examples

//Wigner TFR of a tone embedded in noise
AF = Cambifunb(hilbert(sin(2*%pi*0.25*(1:128))+0.5*rand(1,128,'normal')),-63:64,128);
ker = Ctfrker(128,128,'WV');
Wigner_TFR = Caf2tfr(AF,ker);
grayplot(1:128,linspace(0,0.5,128),Wigner_TFR');

See also

Authors

<< Ambiguity plane function (C - toolbox) Ambiguity plane function (C - toolbox) Cambifunb >>