Department of Systems and Computer Engineering
Ottawa, Canada

Dr. Howard Schwartz: Publication Abstract

Publication: V.C. Aitken and H.M. Schwartz On the Exponential Stability of Discrete-Time Systems with Applications in Observer Design
Abstract: Exponential stability of discrete-time systems, stability domains, and state bounds are obtained with the use of vector norm Lyapunov functions. For linear systems, necessary and sufficient conditions are given for asymptotic stability, and exponential bounds are derived. For nonlinear systems, sufficient conditions for exponential stability also yield a stability domain and exponential bounds. Applications are demonstrated in observer design for uncertain discrete-time nonlinear systems.