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Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/3154

Title: Variance-constrained control for uncertain stochastic systems with missing measurements
Authors: Wang, Z
Ho, DWC
Liu, X
Keywords: Algebraic matrix inequality; Incomplete observation
Missing signal; Robust control; Stochastic control
Variance constraints
Publication Date: 2005
Publisher: IEEE
Citation: IEEE Transactions on Systems, Man and Cybernetics, Part A, 35(5): 746 - 753
Abstract: In this paper, we are concerned with a new control problem for uncertain discrete-time stochastic systems with missing measurements. The parameter uncertainties are allowed to be norm-bounded and enter into the state matrix. The system measurements may be unavailable (i.e., missing data) at any sample time, and the probability of the occurrence of missing data is assumed to be known. The purpose of this problem is to design an output feedback controller such that, for all admissible parameter uncertainties and all possible incomplete observations, the system state of the closed-loop system is mean square bounded, and the steady-state variance of each state is not more than the individual prescribed upper bound. We show that the addressed problem can be solved by means of algebraic matrix inequalities. The explicit expression of the desired robust controllers is derived in terms of some free parameters, which may be exploited to achieve further performance requirements. An illustrative numerical example is provided to demonstrate the usefulness and flexibility of the proposed design approach.
Description: Copyright [2005] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
URI: http://bura.brunel.ac.uk/handle/2438/3154
ISSN: 1083-4427
Appears in Collections:Computer Science
Dept of Computer Science Research Papers

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