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A note on argument principle

delete2004-10-01
delete4
PRE
AI
C
Corneliu Rusu *
J
Jaakko Astola
DOI：10.1109/LSP.2004.835459delete
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Abstract

Abstract

En 中文
The goal of this work is to show how the argument principle together with discrete Fourier transform (DFT) can be used to determine some properties of finite-length complex-valued sequences, precisely the localization of zeros with respect to unit circle of their related Z-transform. An upper bound of the DFT (in one step) length to exactly calculate the increase of the argument is also provided.
Keywords:
argument principle
minimum-phase functions
number of zeros
signal reconstruction
winding number
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Journal

IEEE Signal Processing Magazine cover
IEEE Signal Processing Magazine
IF:
9.6
Papers:
1.1W
Citations:
1.7W

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