Journal
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE
Volume 43, Issue 1, Pages 9-20Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207721003753409
Keywords
nonlinear systems; (TS) fuzzy systems; non-fragile H-infinity control; linear matrix inequality; fuzzy state observer
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In this article, a new approach regarding H-infinity and non-fragile stability analysis and observer-based controller synthesis problem for a class of discrete-time fuzzy systems is investigated. The multiplicative gain variations under consideration are contained in both the controller gain and observer gain. By defining a basis-dependent Lyapunov function and introducing some additional matrix variables, new sufficient conditions are derived to guarantee the stability of the non-fragile H-infinity observer-based control system. Seeking computational convenience, the developed results are cast in the format of linear matrix inequalities and two numerical examples are presented to illustrate the feasibility of theoretical developments.
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