public void TestFFTBlockExecute()
{
//Test with periodic signal
var signalBlock = new GenerateSignalBlock {
TemplateName = "Binary", Start = 0, Finish = 7, SamplingRate = 1, Offset = 1.1
};
var fftBlock = new FFTBlock();
fftBlock.Execute();
signalBlock.OutputNodes[0].ConnectTo(fftBlock.InputNodes[0]);
Assert.IsNotNull(fftBlock.Name);
Assert.IsNotNull(fftBlock.Description);
Assert.IsNotNull(fftBlock.ProcessingType);
signalBlock.Execute();
Assert.AreEqual("3.2 0.0 0.0 0.0", fftBlock.OutputNodes[0].Object.ToString(1));
//Test cascade
var scalarBlock = new ScalarOperationBlock {
Value = 1, Operation = WaveMath.OperationEnum.Sum
};
fftBlock.OutputNodes[0].ConnectTo(scalarBlock.InputNodes[0]);
signalBlock.Execute();
Assert.AreEqual("4.2 1.0 1.0 1.0", scalarBlock.OutputNodes[0].Object.ToString(1));
//Test when cascade is false
fftBlock.Cascade = false;
var fftBlock2 = (FFTBlock)fftBlock.Clone();
fftBlock.OutputNodes[0].ConnectTo(fftBlock2.InputNodes[0]);
signalBlock.Execute();
Assert.AreEqual(0, fftBlock2.OutputNodes[0].Object.Count);
}
public static List<double> FFTTransform(List<double> serie)
{
//Declaring the blocks
var inputSeriesBlock = new InputSeriesBlock();
inputSeriesBlock.SetSeries(serie);
var outputSeriesBlock = new OutputSeriesBlock();
var fFTBlock = new FFTBlock
{
Mode = ManagedFFTModeEnum.UseLookupTable
};
//Connecting the blocks
inputSeriesBlock.OutputNodes[0].ConnectTo(fFTBlock.InputNodes[0]);
fFTBlock.OutputNodes[1].ConnectTo(outputSeriesBlock.InputNodes[0]);
//Appending the blocks to a block list and execute all
var blockList = new BlockList();
blockList.Add(inputSeriesBlock);
blockList.Add(fFTBlock);
blockList.Add(outputSeriesBlock);
blockList.ExecuteAll();
return outputSeriesBlock.GetSeries();
}
public void TestIFFTBlockExecute()
{
var signalBlock = new GenerateSignalBlock {
TemplateName = "Binary", Start = 0, Finish = 31, SamplingRate = 1, Offset = 1.1
};
var fftBlock = new FFTBlock();
var ifftBlock = new IFFTBlock();
ifftBlock.Execute();
signalBlock.OutputNodes[0].ConnectTo(fftBlock.InputNodes[0]);
fftBlock.OutputNodes[1].ConnectTo(ifftBlock.InputNodes[0]);
Assert.IsNotNull(ifftBlock.Name);
Assert.IsNotNull(ifftBlock.Description);
Assert.IsNotNull(ifftBlock.ProcessingType);
signalBlock.Execute();
Assert.AreEqual("1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1 1.1 2.1", ifftBlock.OutputNodes[0].Object.ToString(1));
//Test cascade
var scalarBlock = new ScalarOperationBlock {
Value = 1, Operation = WaveMath.OperationEnum.Sum
};
ifftBlock.OutputNodes[0].ConnectTo(scalarBlock.InputNodes[0]);
signalBlock.Execute();
Assert.AreEqual("2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1 2.1 3.1", scalarBlock.OutputNodes[0].Object.ToString(1));
//Test when cascade is false
fftBlock.Cascade = false;
var ifftBlock2 = (IFFTBlock)ifftBlock.Clone();
ifftBlock.OutputNodes[0].ConnectTo(ifftBlock2.InputNodes[0]);
signalBlock.Execute();
Assert.AreEqual(0, ifftBlock2.OutputNodes[0].Object.Count);
ifftBlock2.Cascade = false;
ifftBlock2.Execute();
Assert.IsNotNull(ifftBlock2.OutputNodes[0].Object[0]);
}
