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G-97-59

Stochastic Stability and Guaranteed Cost Control of Discrete-time Uncertain Systems with Markovian Jumping Parameters

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In this paper, we first study the problems of robust quadratic mean square stability and stabilization for a class of uncertain discrete-time linear systems with both Markovian jumping parameters and Frobenius norm-bounded parametric uncertainties. Necessary and sufficient conditions for the above problems are proposed, which are in terms of positive definite solutions of a set of coupled algebraic Riccati inequalities. Then, the problem of robust quadratic guaranteed cost control for the underlying systems is investigated. A guaranteed cost control is designed to ensure the cost function is within a certain bound, irrespective of all admissible uncertainties. Furthermore, the control law and the bound are related to solutions of a set of coupled algebraic Riccati inequalities.

, 25 pages