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SignalUtils.Czt Method ([In] TVec, int, [In] TCplx, [In] TCplx, [In] TVec)
SignalUtils Class  SignalUtils Members  Dew.Signal.Units Namespace  Czt Method  See Also
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Compute the chirp z-transform.

Syntax
C#
Visual Basic
public static void Czt([In] TVec Src, int k, [In] TCplx Step, [In] TCplx Offset, [In] TVec aResult);
Remarks

Compute the chirp z-transform of Src and place it in aResult. The starting frequency is defined with Offset and frequency step is defined with Step. The final frequency is at Offset + k*Step. k defines the number of frequency bins at which to estimated the amplitude and phase of the frequency. Example for computing the Step and Offset: 

 

Step := Expj(-(FStop - FStart)*2*Pi/(k*FS)); Offset := Expj(2*Pi*FStart/FS);
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