calculates the circular convolution of two real vectors of period iSize.
int fft_fft_convolution( int iSize, double * vSig1, double * vSig2 )
Returns 0 for success or error codes for failure.
EX1
//Assume the current Worksheet has 4 columns, the first two columns contain 2 sets of real //data values. This piece of code computes the circular convolution of two real vectors. //The result is output into the third column, and it's Fourier transform is in the //fourth column. #include <..\originlab\fft.h> void TEST_fft_fft_convolution() { int n=8, success; Worksheet wks = Project.ActiveLayer(); if(wks) { Dataset xx(wks, 0); Dataset yy(wks, 1); Dataset aa(wks, 2); Dataset bb(wks, 3); vector x = xx; vector y = yy; success = fft_fft_convolution(n, x, y); aa = x; bb = y; } }
fft_fft_deconvolution
fft.h