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Member of the transforms class.

Syntax

e = czt(a)

e = czt(a, b)

e = czt(a, b, c)

e = czt(a, b, c, d)

Description

Computes the Chirp-Z transform. czt computes the Chirp-Z transform in a similar manner as the FFT VI.

Examples

Inputs

Name	Description
a	Specifies a vector or matrix.
b	Specifies the length of the transform. b is an integer. The default is length(a).
c	Specifies the complex ratio (complex scalar) used in the Chirp-Z transform. Depending on the magnitude of c, LabVIEW generates either arcs or spirals as sampling points. The default is exp(-2*pi*j/b).
d	Specifies the starting point (complex scalar) of the Chirp-Z transform. The default is 1.

Outputs

Name	Description
e	Returns the Chirp-Z transform of a. If a is a matrix, c returns the Chirp-Z transforms of all columns of a. c is a vector or matrix.

Examples

A = [1, 2, 3, 4, 4, 3, 2, 1]
C = czt(A, 8)

Related Topics

fft
iczt