public override void Run()
{
OutputSignal = new Signal(new List <float>(), false, new List <float>(), new List <float>(), new List <float>());
FastFourierTransform fft = new FastFourierTransform();
fft.InputTimeDomainSignal = InputSignal;
fft.Run();
fft.OutputFreqDomainSignal.FrequenciesAmplitudes[0] = 0;
fft.OutputFreqDomainSignal.FrequenciesPhaseShifts[0] = 0;
InverseFastFourierTransform ifft = new InverseFastFourierTransform();
ifft.InputFreqDomainSignal = fft.OutputFreqDomainSignal;
ifft.Run();
OutputSignal = ifft.OutputTimeDomainSignal;
}
public List <float> clculatecorrelation(Signal inputs1, Signal inputs2)
{
List <float> Results = new List <float>();
// find fft l signal el 2ola w el tania
FastFourierTransform fastfun = new FastFourierTransform();
///// signal 1
///
fastfun.InputTimeDomainSignal = inputs1;
fastfun.InputSamplingFrequency = 4;
fastfun.Run();
Signal outoffft1 = new Signal(false, new List <float>(), new List <float>(), new List <float>()); // ناتج fft1
outoffft1 = fastfun.OutputFreqDomainSignal;
///////
///
//////signal 2
///
fastfun.InputTimeDomainSignal = inputs1;
fastfun.InputSamplingFrequency = 4;
fastfun.Run();
Signal outoffft2 = new Signal(false, new List <float>(), new List <float>(), new List <float>());
outoffft2 = fastfun.InputTimeDomainSignal = inputs2;
///////////////
///////
///هنجيب الكونجكت بتاع السيجنال الاولي هنضرب الايمجن ف -1
///
Complex result_of_multyplay2signals = new Complex();
for (int i = 0; i < outoffft1.FrequenciesAmplitudes.Count; i++)
{
double Real1 = outoffft1.FrequenciesAmplitudes[i] * Math.Cos(outoffft1.FrequenciesPhaseShifts[i]);
double Imag1 = outoffft1.FrequenciesAmplitudes[i] * Math.Sin(outoffft1.FrequenciesPhaseShifts[i]);
double Real2 = outoffft2.FrequenciesAmplitudes[i] * Math.Cos(outoffft2.FrequenciesPhaseShifts[i]);
double Imag2 = outoffft2.FrequenciesAmplitudes[i] * Math.Sin(outoffft2.FrequenciesPhaseShifts[i]);
double Real = Real1 * Real2;
double Imag = -1 * Imag1 * Imag2;
inp_of_ifft.Add((float)(Real + Imag));
Complex x = new Complex(Real, Imag);
result_of_multyplay2signals = new Complex(x.Real, x.Imaginary);
}
///////////////////// find ifft
///
InverseFastFourierTransform invfastfun = new InverseFastFourierTransform();
for (int i = 0; i < inp_of_ifft.Count; i++)
{
invfastfun.InputFreqDomainSignal.FrequenciesAmplitudes[i] = inp_of_ifft[i];
}
invfastfun.Run();
for (int i = 0; i < invfastfun.OutputTimeDomainSignal.Samples.Count; i++)
{
float Result = (float)((double)(invfastfun.OutputTimeDomainSignal.Samples[i] / invfastfun.OutputTimeDomainSignal.Samples.Count));
if (inputs1 != inputs2)
{
Results.Add((float)Math.Round(Result, 8));
}
else
{
Results.Add(Result);
}
}
return(Results);
}
