Title :
A stability criterion for N-dimensional zero-phase recursive digital filters
Author :
Ahmadi, Madjid ; King, Robert A.
Author_Institution :
Imperial College of Science and Technology, London, England
fDate :
6/1/1977 12:00:00 AM
Abstract :
This paper presents an extension of the work of Pistor to N dimensions. The stability of an N-dimensional recursive digital filter is shown to be related to the properties of its cepstrum. A procedure is also given for the decomposition of unstable recursive digital filters having a nonzero nonimaginary frequency response into a set of stable single-quadrant recursive filters.
Keywords :
Cepstrum; Digital filters; Frequency response; Stability criteria; Testing; Zinc;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1977.10586