Title :
An improved stability test algorithm for two-dimensional digital filters
Author :
Yang, Shih-Feng ; Hwang, Chyi
Author_Institution :
Dept. of Chem. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
fDate :
7/1/2000 12:00:00 AM
Abstract :
In this paper, we show that the tabular algorithm given by Jury (1991) for obtaining inner determinants with numerical entries is also valid for the case of polynomial entries. Based on this algorithm, the new stability criterion recently proposed by Yang et al. (1998) for two-dimensional (2-D) digital filters can be efficiently implemented. As compared with the tabular algorithm given by Yang et al., the proposed algorithm leads to a great reduction in the order of polynomial entries of the array from n22n1-1 to n1n2
Keywords :
circuit stability; filtering theory; polynomials; stability criteria; two-dimensional digital filters; 2D digital filters; inner determinants; polynomial entries; stability criterion; stability test algorithm; tabular algorithm; two-dimensional digital filters; Chemical engineering; Circuits; Councils; Digital filters; Polynomials; Stability criteria; System testing; Transfer functions; Two dimensional displays;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
