ChirpZ transform
Purpose
Description
Macro Synopsis
Modules
Related Functions
Purpose
ChirpZ transform
Description
"ChirpZ transform" calculates the Chirp z-transform of the given
signal x which is the z-transform of the signal along a spiral
contour defined by
the parameters
- number N of points in the z-plane
- initial magnitude (or radius) r
- initial phase angle ph (in radians)
- magnitude multiplier a
- phase increment dph (in radians).
Note: The discrete Fourier transform is a special case of the Chirp
z-transform with ph=0, r=1, dph=
and N being
half the length of x (in samples).
Macro Synopsis
y = ChirpZTrafo(x,N,r,ph,a,dph);
signal x,y;
int N;
float r,ph,a,dph;
Modules
Spectral
Related Functions
Fourier transform