Title :
General orthogonal sequences via a Routh-type stability array
Author :
Calvez, L.C. ; Vilbe, P. ; Brehonnet, P.
Author_Institution :
Univ. Bretagne Occidentale, Brest, France
Abstract :
It is shown that orthogonal functions are easily extracted from a Routh-type array widely used for testing the stability of discrete systems. As an application, computation of the optimal numerator of a reduced discrete model without inverting a Gram matrix is presented.
Keywords :
control system analysis; discrete time systems; matrix algebra; stability; Gram matrix; Routh-type; model order reduction; optimal numerator; orthogonal sequences; reduced discrete model; stability array;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921142
