public static void ttt(double[] d1)
{
double[] asp = new double[100];
double[] psp = new double[100];
double df = 1;
// NationalInstruments.Analysis.SpectralMeasurements.Measurements.AmplitudePhaseSpectrum( = new
Measurements.AmplitudePhaseSpectrum(d1, false, 1, out asp, out psp, out df);
}