_generate_hamming()

void _generate_hamming	(	kiss_fft_scalar	window[],
		int	N )

Definition at line 40 of file cq_kernel.cpp.hpp.

                                                                    {
    if (N <= 1) {
        if (N == 1) window[0] = 1;
        return;
    }
    fft_float_t a0 = 0.54;
    for(int i = 0; i < N; i++){
        fft_float_t val = a0-(1-a0)*FFT_COS(2*M_PI*i/(N-1));
        #ifdef FIXED_POINT  // If fixed_point, represent hamming window with integers
        window[i] = (kiss_fft_scalar)(SAMP_MAX*val);
        #else               // Else if floating point, represent hamming window as-is
        window[i] = val;
        #endif
    }
}

References FFT_COS, FL_NOEXCEPT, kiss_fft_scalar, M_PI, and SAMP_MAX.

Referenced by _generate_kernel().

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