?? fftw_example.cpp
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// example of fftw usage with aureservoir#include "aureservoir/aureservoir.h"#include <iostream>#include <complex>#include <math.h>using namespace flens;typedef DenseVector<Array<float> > DEVector;typedef DenseVector<Array< complex<float> > > CDEVector;int main(int argc, char *argv[]){ DEVector x(25), y(25); std::fill_n(x.data(), 25, 0); std::fill_n(y.data(), 25, 0); x(10) = 1; y(19) = 1; // delay = 9 // calc fftsize int L = x.length() > y.length() ? x.length() : y.length(); int fftsize = (int) pow( 2, ceil(log(L)/log(2)) ); // next power of 2 // calc fft CDEVector X,Y; aureservoir::rfft(x, X, fftsize); aureservoir::rfft(y, Y, fftsize); // calc delay with GCC int delay = aureservoir::CalcDelay<float>::gcc(X,Y,10,0); std::cout << "delay ist: " << delay << "\n"; return 0;}
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