Title :
Robust Output Feedback Stabilization for Uncertain Discrete-Time Fuzzy Markovian Jump Systems With Time-Varying Delays
Author :
Zhang, Yashun ; Xu, Shengyuan ; Zhang, Baoyong
Author_Institution :
Sch. of Autom., Nanjing Univ. of Sci. & Technol., Nanjing
fDate :
4/1/2009 12:00:00 AM
Abstract :
This paper provides a delay-dependent approach to the design of fuzzy dynamic output feedback controllers for uncertain discrete-time fuzzy Markovian jump systems with interval time-varying delays. First, by a fuzzy-basis-dependent and mode-dependent Lyapunov functional, a stochastic stability condition is derived by using the Finsler´s lemma. Second, in terms of linear matrix inequalities (LMIs), a delay-dependent sufficient condition is presented, under which there exists a fuzzy output feedback controller such that the resulting closed-loop system is robustly stochastically stable. A desired controller can be constructed when these LMIs are feasible. Finally, the effectiveness of the proposed design method is demonstrated by a simulation example.
Keywords :
Markov processes; closed loop systems; delays; discrete time systems; feedback; fuzzy systems; linear matrix inequalities; stability; time-varying systems; uncertain systems; Finsler lemma; closed-loop system; delay-dependent approach; delay-dependent sufficient condition; fuzzy dynamic output feedback controller design; fuzzy output feedback controller; fuzzy-basis-dependent Lyapunov functional; interval time-varying delays; linear matrix inequalities; mode-dependent Lyapunov functional; robust output feedback stabilization; stochastic stability condition; uncertain discrete-time fuzzy Markovian jump systems; Delay-dependent stabilization; Markovian jump systems; fuzzy systems; interval time-varying delays; output feedback controllers;
Journal_Title :
Fuzzy Systems, IEEE Transactions on
DOI :
10.1109/TFUZZ.2009.2013203