Title :
On the stability of N-dimensional (N-D) digital filters in the presence of nonessential singularity of the second kind (NSSK)
Author :
Lizhi, Wang ; Xiyu, Du
Author_Institution :
Inst. of Inf. Sci., Northern Jiao-Tong Univ., Beijing, China
Abstract :
The authors discuss previously published stability conditions (see L.M. Roytman et al., Proc. 20th Asilomer Conf. on Signal, Systems, Computer, 1987). It is pointed out that the relaxed Dautov sufficient condition drawn by Roytman is not necessary for stability, that its proof for a necessary condition is questionable, and that the solution it supports is not correct
Keywords :
multidimensional digital filters; stability; N-D digital filters; N-dimensional digital filters; nonessential singularity; proof; relaxed Dautov sufficient condition; second kind; stability; Digital filters; Polynomials; Stability; Sufficient conditions; Transfer functions; Zinc;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.112643
