Title :
Counterexample in the least-squares inverse stabilisation of 2D recursive filters
Author :
Genin, Y. ; Kamp, Y.
Author_Institution :
MBLE Research Laboratory, Brussels, Belgium
Abstract :
A counterexample is presented disproving the conjecture that the planar least-squares inverse of a 2-variable polynomial is devoid of zeros when both variables are inside or on the unit circle.
Keywords :
digital filters; stability; 2D recursive filters; least squares inverse stabilisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750252
