Title :
Some Schur-stability criteria for uncertain systems with complex coefficients
Author :
Katbab, A. ; Kraus, F. ; Jury, E.I.
Author_Institution :
Dept. of Electr. & Comput. Eng., Miami Univ., Coral Gables, FL, USA
fDate :
9/1/1990 12:00:00 AM
Abstract :
When a discrete-time uncertain system is characterized by a polynomial with complex coefficients whose real and imaginery parts belong to some known intervals, its stability in the face of coefficient variation is under question. Three approaches to robust stability analysis of these kind of systems are presented. In all three approaches, the number of polynomials whose stability has to be checked grows with the polynomial degree, in contrast to the continuous-time case
Keywords :
discrete time systems; polynomials; stability; Schur-stability criteria; coefficient variation; complex coefficients; continuous-time case; discrete-time systems; polynomial; polynomial degree; robust stability analysis; uncertain systems; Automatic control; Circuits and systems; Computer industry; Electrical equipment industry; Industrial control; Polynomials; Robust stability; Sufficient conditions; Uncertain systems;
Journal_Title :
Circuits and Systems, IEEE Transactions on
