public void TestInspectionSpectral(double analysisLength, double windowLength, DetectorWindowType windowType, double windowOverlap, int zeroPadding, int fs, bool logScale, double freqMin, double freqMax, string expectedResults)
{
var parameters = new InspectionAnalysisParameters();
parameters.AnalysisLength = analysisLength;
parameters.WindowLength = windowLength;
parameters.WindowType = windowType;
parameters.WindowOverlap = windowOverlap;
parameters.ZeroPadding = zeroPadding;
parameters.Fs = fs;
parameters.LogScale = logScale;
parameters.FreqMax = freqMax;
parameters.FreqMin = freqMin;
var result = Functions.InspectionSpectral(data, parameters);
NUnit.Framework.Assert.AreEqual(result.X.Count, 46);
NUnit.Framework.Assert.AreEqual(result.Y.Count, 2);
NUnit.Framework.Assert.AreEqual(result.Y[0].Count, 46);
NUnit.Framework.Assert.AreEqual(result.Ylabel, expectedResults);
NUnit.Framework.Assert.AreEqual(result.Xlabel, "F (Hz)");
}
public static InspectionAnalysisResults InspectionSpectral(List <List <double> > data, InspectionAnalysisParameters parameters)
{
var fs = parameters.Fs;
int N = (int)Math.Round(parameters.AnalysisLength * fs);
var Nw = Math.Round(parameters.WindowLength * fs);
var Nover = Math.Round(parameters.WindowOverlap * fs);
var LS = parameters.LogScale;
var windowtype = parameters.WindowType;
var freqMin = 0d;
var freqMax = 0d;
if (parameters.FreqMin != null)
{
freqMin = (double)parameters.FreqMin;
}
if (parameters.FreqMax != null)
{
freqMax = (double)parameters.FreqMax;
}
var Nzp = 0;
if (parameters.ZeroPadding != null)
{
Nzp = (int)parameters.ZeroPadding;
}
List <List <double> > dataInFreqDomain;
List <double> freqAll;
ComputePSD(data, fs, N, Nw, Nover, Nzp, windowtype, out dataInFreqDomain, out freqAll);
InspectionAnalysisResults re = CutPSDbyFreq(LS, freqMin, freqMax, dataInFreqDomain, freqAll);
re.Xlabel = "F (Hz)";
if (LS)
{
re.Ylabel = "PSD (dB)";
}
else
{
re.Ylabel = "PSD";
}
//need to do some argument validation
//such as the window size need to be smaller than the actual signal length
//overlap size need to be smaller than window size
return(re);
}
public InspectionAnalysisParametersViewModel()
{
_model = new InspectionAnalysisParameters();
}
