| Wavelet Toolbox | |
Syntax
[PSI,X] = cmorwavf(LB,UB,N,FB,FC)
Description
[PSI,X] = cmorwavf(LB,UB,N,FB,FC) returns values of the complex Morlet wavelet defined by a positive bandwidth parameter FB, a wavelet center frequency FC and the expression:
PSI(X) = ((pi*FB)^(-0.5))*exp(2*i*pi*FC*X)*exp(-X^2/FB)
on an N point regular grid for the interval [LB,UB].
Output arguments are the wavelet function PSI computed on the grid X.
Examples
% Set bandwidth and center frequency parameters.
fb = 1; fc = 1.5;
% Set effective support and grid parameters.
lb = -8; ub = 8; n = 1000;
% Compute complex Morlet wavelet cmor1-1.5.
[psi,x] = cmorwavf(lb,ub,n,fb,fc);
% Plot complex Morlet wavelet.
subplot(211)
plot(x,real(psi)),
title('Complex Morlet wavelet cmor1-1.5')
xlabel('Real part'), grid
subplot(212)
plot(x,imag(psi))
xlabel('Imaginary part'), grid
See Also
waveinfo
References
Teolis, A. (1998), Computational signal processing with wavelets, Birkhauser, p. 65.
| | cgauwavf | coifwavf | |
