TSpectrumCZT Class

Header: Dew.Signal/SignalAnalysis.h · Cross-compiler
tObjectTSpectrumCZT

class TSpectrumCZT : public tObject;

Encapsulates parameters required by chirp-Z transform.

Chirp Z-transform, can evaluate the frequency spectrum by starting and ending at any frequency and calculating frequency bins with any frequency step. Chirp Z-transform is more efficient then FFT, if zero padding is required.

Constructors

NameDescription
TSpectrumCZT (2)Create the object and pass TSpectrumAnalyzer as the owner.

Properties

NameTypeDescription
FrequencyStepdoubleNormalized frequency step (FS = 1) for the Chirp Z-transform.
StartFrequencydoubleStarting normalized frequency (FS = 1) for the Chirp Z-transform.
StartRadiusdoubleDefines the starting radius in the Z-plane.
StopFrequencydoubleEnding normalized frequency (FS = 1) for the Chirp Z-transform.
StopRadiusdoubleDefines the ending radius in the Z-plane.