DocumentCode
341778
Title
A necessary condition for Schur stability of 2D polynomials [digital filters]
Author
Xiao, Yang ; Unbehauen, Rolf ; Du, Xiyu
Author_Institution
Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China
Volume
3
fYear
1999
fDate
36342
Firstpage
439
Abstract
Based on the phase frequency property of 2D polynomials, a necessary condition for Schur stability of 2D polynomials has been obtained. We give a lower bound that the derivative of the phase frequency function of 2D Schur polynomials must satisfy. The result is extended to the classical 2D polynomials without zeros inside the unit bidisk. An illustrative example is given
Keywords
circuit stability; poles and zeros; polynomials; two-dimensional digital filters; 2D polynomials; Schur stability; digital filters; phase frequency property; unit bidisk; zeros; Bismuth; Digital filters; Frequency domain analysis; Information science; Polynomials; Stability analysis; Sufficient conditions; Testing; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location
Orlando, FL
Print_ISBN
0-7803-5471-0
Type
conf
DOI
10.1109/ISCAS.1999.778879
Filename
778879
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