public void DFTTestMethod3()
{
DiscreteFourierTransform DFT = new DiscreteFourierTransform();
// test case 2
List <float> Samples = new List <float> {
1, 3, 5, 7, 9, 11, 13, 15
};
DFT.InputTimeDomainSignal = new DSPAlgorithms.DataStructures.Signal(Samples, false);
DFT.InputSamplingFrequency = 4;
var FrequenciesAmplitudes = new List <float> {
64, 20.9050074380220f, 11.3137084989848f, 8.65913760233915f, 8, 8.65913760233915f, 11.3137084989848f, 20.9050074380220f
};
var FrequenciesPhaseShifts = new List <float> {
0, 1.96349540849362f, 2.35619449019235f, 2.74889357189107f, -3.14159265358979f, -2.74889357189107f, -2.35619449019235f, -1.96349540849362f
};
var Frequencies = new List <float> {
0, 1, 2, 3, 4, 5, 6, 7
};
DFT.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(FrequenciesAmplitudes, DFT.OutputFreqDomainSignal.FrequenciesAmplitudes) &&
UnitTestUtitlities.SignalsPhaseShiftsAreEqual(FrequenciesPhaseShifts, DFT.OutputFreqDomainSignal.FrequenciesPhaseShifts));
}
public void DFTTestMethod2()
{
InverseFastFourierTransform IFFT = new InverseFastFourierTransform();
// test case 2
var FrequenciesAmplitudes = new List <float> {
64, 20.9050074380220f, 11.3137084989848f, 8.65913760233915f, 8, 8.65913760233915f, 11.3137084989848f, 20.9050074380220f
};
var FrequenciesPhaseShifts = new List <float> {
0, 1.96349540849362f, 2.35619449019235f, 2.74889357189107f, 3.14159265358979f, -2.74889357189107f, -2.35619449019235f, -1.96349540849362f
};
var Frequencies = new List <float> {
0, 1, 2, 3, 4, 5, 6, 7
};
IFFT.InputFreqDomainSignal = new DSPAlgorithms.DataStructures.Signal(true, Frequencies, FrequenciesAmplitudes, FrequenciesPhaseShifts);
IFFT.Run();
List <float> outPutSamples = new List <float> {
1, 3, 5, 7, 9, 11, 13, 15
};
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(outPutSamples, IFFT.OutputTimeDomainSignal.Samples));
}
public static bool SignalsPhaseShiftsAreEqual(List <float> l1, List <float> l2)
{
if (l1.Count != l2.Count)
{
return(false);
}
for (int i = 0; i < l1.Count; i++)
{
l1[i] = UnitTestUtitlities.RoundPhaseShift(l1[i]);
l2[i] = UnitTestUtitlities.RoundPhaseShift(l2[i]);
if ((!float.IsNaN(l1[i]) && float.IsNaN(l2[i])) || (float.IsNaN(l1[i]) && !float.IsNaN(l2[i])))
{
return(false);
}
else if (Math.Abs(l1[i] - l2[i]) > 0.0001)
{
//Console.WriteLine(i.ToString() + " " + l1[i].ToString() + " " + l2[i].ToString());
return(false);
}
}
return(true);
}
public void DirectConvolutionTestMethod4()
{
DirectConvolution dc = new DirectConvolution();
// test case 4 ..
var expectedOutput = new Signal(new List <float>()
{
1, 1, -1, 0, 0, 3, 3, 2, 1
}, new List <int>()
{
-2, -1, 0, 1, 2, 3, 4, 5, 6
}, false);
dc.InputSignal1 = new Signal(new List <float>()
{
1, 2, 1, 1
}, new List <int>()
{
-2, -1, 0, 1
}, false);
dc.InputSignal2 = new Signal(new List <float>()
{
1, -1, 0, 0, 1, 1
}, new List <int>()
{
0, 1, 2, 3, 4, 5
}, false);
dc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, dc.OutputConvolvedSignal.Samples));
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesIndicesAreEqual(expectedOutput, dc.OutputConvolvedSignal));
}
public void FoldingTestMethod3()
{
f.InputSignal = inputSignal;
expectedOutputSignal = UnitTestUtitlities.LoadSignal("TestingSignals/Output_Fold.ds");
f.Run();
actualOutputSignal = f.OutputFoldedSignal;
}
public void ShiftingRightTestMethod2()
{
s.InputSignal = inputSignal;
s.ShiftingValue = -500;
expectedOutputSignal = UnitTestUtitlities.LoadSignal("TestingSignals/Output_Shift_Minus500.ds");
s.Run();
actualOutputSignal = s.OutputShiftedSignal;
}
public void AutoFastNonNormalizedCorrelationTestMethod2()
{
FastCorrelation fc = new FastCorrelation();
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/FastAutoCorrelationNonNormalized_TestCase.ds");
fc.InputSignal1 = UnitTestUtitlities.LoadSignal("TestingSignals/FastAutoCorrelation.ds");
fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNonNormalizedCorrelation));
}
public void QuantizationAndEncodingTestMethod3()
{
QuantizationAndEncoding Q = new QuantizationAndEncoding();
Q.InputLevel = 4;
Q.InputSignal = new DSPAlgorithms.DataStructures.Signal(new List <float>()
{
-1.22f, 1.5f, 3.24f, 3.94f, 2.20f, -1.1f, -2.26f, -1.88f, -1.2f
}, false);
Q.Run();
List <int> expectedIntervalIndices = new List <int>()
{
1, 3, 4, 4, 3, 1, 1, 1, 1
};
List <string> expectedEncodedValues = new List <string>()
{
"00", "10", "11", "11", "10", "00", "00", "00", "00"
};
List <float> expectedQuantizedValues = new List <float>()
{
-1.485f, 1.615f, 3.165f, 3.165f, 1.615f, -1.485f, -1.485f, -1.485f, -1.485f
};
List <float> expectedSampledError = new List <float>()
{
-0.265f, 0.115f, -0.075f, -0.775f, -0.585f, -0.385f, 0.775f, 0.395f, -0.285f
};
bool encodedValues = true;
bool quantizedValues = true;
bool indicesValues = true;
bool errorValues = true;
for (int i = 0; i < expectedEncodedValues.Count; i++)
{
if (expectedEncodedValues[i] != Q.OutputEncodedSignal[i])
{
encodedValues = false;
break;
}
}
quantizedValues = UnitTestUtitlities.SignalsSamplesAreEqual(expectedQuantizedValues, Q.OutputQuantizedSignal.Samples);
errorValues = UnitTestUtitlities.SignalsSamplesAreEqual(expectedSampledError, Q.OutputSamplesError);
for (int i = 0; i < expectedIntervalIndices.Count; i++)
{
if (expectedIntervalIndices[i] != Q.OutputIntervalIndices[i])
{
indicesValues = false;
break;
}
}
Assert.IsTrue(encodedValues && quantizedValues && indicesValues && errorValues);
}
public void FoldingAndShiftLeftTestMethod5()
{
s.ShiftingValue = -500;
expectedOutputSignal = UnitTestUtitlities.LoadSignal("TestingSignals/Output_Fold_Minus500.ds");
f.InputSignal = inputSignal;
f.Run();
s.InputSignal = f.OutputFoldedSignal;
s.Run();
actualOutputSignal = s.OutputShiftedSignal;
}
public void AutoDirectNormalizedPeriodicCorrelationTestMethod2()
{
DirectCorrelation dc = new DirectCorrelation();
dc.InputSignal1 = UnitTestUtitlities.LoadSignal("TestingSignals/AutoCorrelationPeriodic_TestCase.ds");
Signal expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/AutoCorrelationNormalizedPeriodic_TestCase.ds");
dc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, dc.OutputNormalizedCorrelation));
}
public void IFFT_TestMethod2()
{
InverseFastFourierTransform IFFT = new InverseFastFourierTransform();
IFFT.InputFreqDomainSignal = UnitTestUtitlities.LoadSignal(@"TestingSignals/Signal2_FFT_Results.ds");
List <float> outPutSamples = UnitTestUtitlities.LoadSignal("TestingSignals/Signal2_FFT.ds").Samples;
IFFT.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(outPutSamples,
IFFT.OutputTimeDomainSignal.Samples));
}
public void FFT_TestMethod2()
{
DiscreteFourierTransform DFT = new DiscreteFourierTransform();
// test case 1 ..
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal2_FFT.ds");
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/Signal2_FFT_Results.ds");
DFT.InputTimeDomainSignal = sig1;
DFT.InputSamplingFrequency = 360;
DFT.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.FrequenciesAmplitudes, DFT.OutputFreqDomainSignal.FrequenciesAmplitudes) &&
UnitTestUtitlities.SignalsPhaseShiftsAreEqual(expectedOutput.FrequenciesPhaseShifts, DFT.OutputFreqDomainSignal.FrequenciesPhaseShifts));
}
public void NormalizerTestMethod2()
{
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal2.ds");
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/Normalizer_TestCase2.ds").Samples;
Normalizer a = new Normalizer();
a.InputMinRange = 0;
a.InputMaxRange = 1;
a.InputSignal = sig1;
a.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput, a.OutputNormalizedSignal.Samples));
}
public void MovingAverageTestMethod2()
{
// test case 2 ..
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal2.ds");
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/MovingAverage_TestCase2.ds").Samples;
MovingAverage a = new MovingAverage();
a.InputSignal = sig1;
a.InputWindowSize = 5;
a.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput, a.OutputAverageSignal.Samples));
}
public void MultiplySignalByConstantTestMethod2()
{
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal2.ds");
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/MultiplySignalByConstant_TestCase2.ds").Samples;
MultiplySignalByConstant m = new MultiplySignalByConstant();
m.InputSignal = sig1;
m.InputConstant = 10;
m.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput, m.OutputMultipliedSignal.Samples));
}
public void RemoveDCComponentTestMethod1()
{
// test case 1 ..
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/DC_Component.ds");
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/DC_Component_Result.ds").Samples;
RemoveDCComponent m = new RemoveDCComponent();
m.InputSignal = sig1;
m.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput, m.OutputSignal.Samples));
}
public void SubtractorTestMethod2()
{
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal1.ds");
var sig2 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal3.ds");
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/Subtractor_TestCase2.ds").Samples;
Subtractor m = new Subtractor();
m.InputSignal1 = sig2;
m.InputSignal2 = sig1;
m.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput, m.OutputSignal.Samples));
}
public void AdderTestMethod2()
{
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal1.ds");
var sig2 = UnitTestUtitlities.LoadSignal("TestingSignals/Signal3.ds");
var expectedOutput = UnitTestUtitlities.LoadSignal("TestingSignals/Adder_TestCase2.ds");
Adder a = new Adder();
a.InputSignals = new List <Signal>();
a.InputSignals.Add(sig1);
a.InputSignals.Add(sig2);
a.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, a.OutputSignal.Samples));
}
public void AutoFastNonNormalizedCorrelationTestMethod1()
{
FastCorrelation fc = new FastCorrelation();
var expectedOutput = new Signal(new List <float>()
{
0.50f, 0.25f, 0.00f, 0.25f
}, false);
fc.InputSignal1 = new Signal(new List <float>()
{
1, 0, 0, 1
}, true);
fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNonNormalizedCorrelation));
}
public void LowCoefficientsTestMethod1()
{
FIR FIR = new FIR();
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/ecg400.ds");
var expectedCoefficients = UnitTestUtitlities.LoadSignal("TestingSignals/LPFCoefficients.ds");
FIR.InputFilterType = DSPAlgorithms.DataStructures.FILTER_TYPES.LOW;
FIR.InputFS = 8000;
FIR.InputStopBandAttenuation = 50;
FIR.InputCutOffFrequency = 1500;
FIR.InputTransitionBand = 500;
FIR.InputTimeDomainSignal = sig1;
FIR.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesIndicesAreEqual(expectedCoefficients, FIR.OutputHn));
}
public void HighFilteredSignalTestMethod2()
{
FIR FIR = new FIR();
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/ecg400.ds");
var expectedFilteredSignal = UnitTestUtitlities.LoadSignal("TestingSignals/ecg_high_pass_filtered.ds");
FIR.InputFilterType = DSPAlgorithms.DataStructures.FILTER_TYPES.HIGH;
FIR.InputFS = 8000;
FIR.InputStopBandAttenuation = 70;
FIR.InputCutOffFrequency = 1500;
FIR.InputTransitionBand = 500;
FIR.InputTimeDomainSignal = sig1;
FIR.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesIndicesAreEqual(expectedFilteredSignal, FIR.OutputYn));
}
public void CrossDirectNormalizedNonPeriodicCorrelationTestMethod2()
{
DirectCorrelation fc = new DirectCorrelation();
var expectedOutput = new Signal(new List <float>()
{
0.2916059f, 0.3499271f, 0.4665695f, 0.0000000f, 0.0000000f, 0.0000000f, 0.0000000f
}, false);
fc.InputSignal1 = new Signal(new List <float>()
{
2, 1, 0, 0, 3
}, false);
fc.InputSignal2 = new Signal(new List <float>()
{
2, 1, 4
}, false); fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNormalizedCorrelation));
}
public void CrossDirectNonNormalizedPeriodicCorrelationTestMethod2()
{
DirectCorrelation fc = new DirectCorrelation();
var expectedOutput = new Signal(new List <float>()
{
0.7142857f, 0.8571429f, 1.1428571f, 0.8571429f, 0.4285714f, 1.7142857f, 0.2857143f
}, false);
fc.InputSignal1 = new Signal(new List <float>()
{
2, 1, 0, 0, 3
}, true);
fc.InputSignal2 = new Signal(new List <float>()
{
2, 1, 4
}, true); fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNonNormalizedCorrelation));
}
public void DFTTestMethod1()
{
FastFourierTransform FFT = new FastFourierTransform();
// test case 1 ..
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/DFT_Signal1.ds");
FFT.InputTimeDomainSignal = sig1;
FFT.InputSamplingFrequency = 4;
List <float> amplitude = new List <float> {
64, 20.9050074380220f, 11.3137084989848f, 8.65913760233915f, 8, 8.65913760233915f, 11.3137084989848f, 20.9050074380220f
};
List <float> phase = new List <float> {
0, 1.96349540849362f, 2.35619449019235f, 2.74889357189107f, 3.14159265358979f, -2.74889357189107f, -2.35619449019235f, -1.96349540849362f
};
FFT.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(amplitude, FFT.OutputFreqDomainSignal.FrequenciesAmplitudes) && UnitTestUtitlities.SignalsSamplesAreEqual(phase, FFT.OutputFreqDomainSignal.FrequenciesPhaseShifts));
}
public void BandStopFilteredSignalTestMethod4()
{
FIR FIR = new FIR();
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/ecg400.ds");
var expectedFilteredSignal = UnitTestUtitlities.LoadSignal("TestingSignals/ecg_band_stop_filtered.ds");
FIR.InputFilterType = DSPAlgorithms.DataStructures.FILTER_TYPES.BAND_STOP;
FIR.InputFS = 1000;
FIR.InputStopBandAttenuation = 60;
FIR.InputF1 = 150;
FIR.InputF2 = 250;
FIR.InputTransitionBand = 50;
FIR.InputTimeDomainSignal = sig1;
FIR.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesIndicesAreEqual(expectedFilteredSignal, FIR.OutputYn));
}
public void BandPassCoefficientsTestMethod3()
{
FIR FIR = new FIR();
var sig1 = UnitTestUtitlities.LoadSignal("TestingSignals/ecg400.ds");
var expectedCoefficients = UnitTestUtitlities.LoadSignal("TestingSignals/BPFCoefficients.ds");
FIR.InputFilterType = DSPAlgorithms.DataStructures.FILTER_TYPES.BAND_PASS;
FIR.InputFS = 1000;
FIR.InputStopBandAttenuation = 60;
FIR.InputF1 = 150;
FIR.InputF2 = 250;
FIR.InputTransitionBand = 50;
FIR.InputTimeDomainSignal = sig1;
FIR.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesIndicesAreEqual(expectedCoefficients, FIR.OutputHn));
}
public void CrossFastNormalizedCorrelationTestMethod1()
{
FastCorrelation fc = new FastCorrelation();
var expectedOutput = new Signal(new List <float>()
{
0.9667248f, 0.7352555f, 0.6807921f, 0.8577981f
}, false);
fc.InputSignal1 = new Signal(new List <float>()
{
4, 3, 1, 6
}, false);
fc.InputSignal2 = new Signal(new List <float>()
{
5, 2, 3, 7
}, false);
fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNormalizedCorrelation));
}
public void CrossDirectNormalizedPeriodicCorrelationTestMethod1()
{
DirectCorrelation fc = new DirectCorrelation();
var expectedOutput = new Signal(new List <float>()
{
0.5974621f, 0.3502364f, 0.2472257f, 0.6180642f, 0.3502364f, 0.7210749f,
}, false);
fc.InputSignal1 = new Signal(new List <float>()
{
4, 3, 1, 6
}, true);
fc.InputSignal2 = new Signal(new List <float>()
{
5, 2, 3
}, true);
fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNormalizedCorrelation));
}
public void CrossDirectNonNormalizedPeriodicCorrelationTestMethod1()
{
DirectCorrelation fc = new DirectCorrelation();
var expectedOutput = new Signal(new List <float>()
{
4.8333333f, 2.8333333f, 2.0000000f, 5.0000000f, 2.8333333f, 5.8333333f
}, false);
fc.InputSignal1 = new Signal(new List <float>()
{
4, 3, 1, 6
}, true);
fc.InputSignal2 = new Signal(new List <float>()
{
5, 2, 3
}, true);
fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNonNormalizedCorrelation));
}
public void CrossFastNonNormalizedCorrelationTestMethod1()
{
FastCorrelation fc = new FastCorrelation();
var expectedOutput = new Signal(new List <float>()
{
17.7500000f, 13.5000000f, 12.5000000f, 15.7500000f
}, false);
fc.InputSignal1 = new Signal(new List <float>()
{
4, 3, 1, 6
}, false);
fc.InputSignal2 = new Signal(new List <float>()
{
5, 2, 3, 7
}, false);
fc.Run();
Assert.IsTrue(UnitTestUtitlities.SignalsSamplesAreEqual(expectedOutput.Samples, fc.OutputNonNormalizedCorrelation));
}