_generate_guassian()

void _generate_guassian	(	kiss_fft_scalar	window[],
		int	N )

Definition at line 56 of file cq_kernel.cpp.hpp.

                                                                     {
    fft_float_t sigma = 0.5; // makes a window accurate to -30dB from peak, but smaller sigma is more accurate
    for(int i = 0; i < N; i++){
        #ifdef FIXED_POINT  // If fixed_point, represent window with integers
        window[i] = SAMP_MAX*FFT_EXP(-0.5*FFT_POW((i-N/2.0)/(sigma*N/2.0), 2.0));
        #else               // Else if floating point, represent window as-is
        window[i] = FFT_EXP(-0.5*FFT_POW((i-N/2.0)/(sigma*N/2.0), 2.0));
        #endif
    }
}

References FFT_EXP, FFT_POW, FL_NOEXCEPT, kiss_fft_scalar, and SAMP_MAX.

Referenced by _generate_kernel().

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