DocumentCode :
388173
Title :
An algorithm for testing stability of two-dimensional digital recursive filters
Author :
Shaw, G.A.
Author_Institution :
Georgia Institute of Technology, Atlanta, Georgia
Volume :
3
fYear :
1978
fDate :
28581
Firstpage :
769
Lastpage :
772
Abstract :
The Principle of the Argument is applied to test the stability of a 2-D recursive filter with denominator B(Z1 ,Z2 ). This approach to stability testing leads to an efficient numerical implementation requiring only the computation of a 2-D DFT, followed by phase unwrapping and a search for zeros of 
. In the absence of zeros of , stability is assured if B(Z1 ,1) and B(1,z2 ) are both minimum phase.
. In the absence of zeros of , stability is assured if B(ZKeywords :
Digital filters; Phased arrays; Polynomials; Stability criteria; System testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.
Type :
conf
DOI :
10.1109/ICASSP.1978.1170518
Filename :
1170518
Link To Document :
