public override IEnumerable <double> GetValues()
{
var skipSignal = signal.GetValues().Skip(Start % signal.GetLength());
for (var rest = Duration; rest > 0; rest--)
{
yield return(skipSignal.First());
skipSignal = (skipSignal.Any()) ? skipSignal.Skip(1) : signal.GetValues();
}
}
public Spectrum GetSpectrum(ISignal signal)
{
var specArr = transformer.Transform(signal.GetValues().ToArray());
var len = (double)specArr.Length;
var dur = signal.GetDurationInSeconds();
var points = specArr
.Select((val, idx) => new FreqPoint(val, len / idx * dur))
.ToArray();
return(new Spectrum(new SpectrumLine[] { new SpectrumLine(points, 0) }));
}
public Complex CalcFreq(ISignal signal, double w)
{
var mc = Complex.Zero;
var i = 0;
foreach (var val in signal.GetValues())
{
mc += Complex.FromPolarCoordinates(val, -i * w * 2 * Math.PI / signal.GetLength());
i++;
//Logger.DEFLOG.WriteLog(String.Format("val: {0};", val));
}
//Logger.DEFLOG.Flush();
return(mc);
}