Title :
Two-stage stability test for two-dimensional recursive digital filters
Author :
Craig, P.C. ; Westphal, L.C.
Author_Institution :
University of Queensland, Department of Electrical Engineering, Brisbane, Australia
Abstract :
This letter presents a two-stage stability test for two-dimensional recursive digital filters and gives details for 1st- and 2nd-order two-dimensional sections. The method is based on the properties of two-variable strictly Hurwitz polynomials.
Keywords :
polynomials; stability; two-dimensional digital filters; Hurwitz polynomials; two-dimensional recursive digital filters; two-stage stability test;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810640
