/// <summary>
/// FFT:
/// fft(wave1->wave2) = fft(wave1->0) + fft(wave2->0)
/// fft(wave1->wave2) = fft(wave1->0) + fft(0->wave2)
/// fft(wave1+wave2) = fft(wave1) + fft(wave2)
/// fft(wave1->wave2) = 0.5 * fft(wave1) + 0.5 * fft(wave2) @ matlab FFT
/// </summary>
public ComplexD[] FftForwardD(ComplexD[] input)
{
if (IsUseCudafy)
{
var fftD = this.FftForwardJustD(input);
if (fftD != null)
{
return(fftD);
}
}
var result = CtkNumConverter.ToSysComplex(input);
MathNet.Numerics.IntegralTransforms.Fourier.Forward(result);
return(CtkNumConverter.ToCudafy(result));
}
public Complex[] FftForward(Complex[] input)
{
if (IsUseCudafy)
{
var fftD = this.FftForwardJustD(CtkNumConverter.ToCudafy(input));
if (fftD != null)
{
return(CtkNumConverter.ToSysComplex(fftD));
}
}
var result = new Complex[input.Length];
Array.Copy(input, result, input.Length);
MathNet.Numerics.IntegralTransforms.Fourier.Forward(result
, MathNet.Numerics.IntegralTransforms.FourierOptions.Matlab);
return(result);
}
public ComplexD[] FftForwardD(IEnumerable <Complex> input)
{
return(FftForwardD(CtkNumConverter.ToCudafy(input)));
}
public Complex[] FftForward(IEnumerable <double> input)
{
return(this.FftForward(CtkNumConverter.ToSysComplex(input)));
}