gauswavf
Purpose
Gaussian wavelet
Syntax
[PSI,X] = gauswavf(LB,UB,N,P)
Description
[PSI,X] = gauswavf(LB,UB,N,P) returns values of the P-th derivative of the Gaussian function on an N point regular grid for the interval [LB,UB]. Cp is such that the 2-norm of the P-th derivative of F is equal to 1.
For P > 8, Symbolic Math Toolbox™ software is required.
Output arguments are the wavelet function PSI computed on the grid X.
[PSI,X] = gauswavf(LB,UB,N) is equivalent to [PSI,X] = gauswavf(LB,UB,N,1).
These wavelets have an effective support of [-5 5].
Examples
% Set effective support and grid parameters.
lb = -5; ub = 5; n = 1000;
% Compute Gaussian wavelet of order 8.
[psi,x] = gauswavf(lb,ub,n,8);
% Plot Gaussian wavelet of order 8.
plot(x,psi),
title('Gaussian wavelet of order 8'), grid
See Also
waveinfo
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