Abstract
This paper is concerned with the problem of stability and robust H ∞ control for 2-D stochastic systems with parameter uncertainties and sector nonlinearities. The class of systems under investigation is described by the 2-D state-space Roesser model. Our attention is focused on the design of a state feedback controller for 2-D stochastic system with sector nonlinearity, such that the closed-loop 2-D stochastic system is asymptotically stable and has a prescribed H ∞ disturbance attenuation performance. First, a sufficient condition is established for the 2-D nonlinear stochastic systems to be asymptotically stable. Then, we extend the bounded real lemma for 2-D systems to 2-D stochastic systems with sector nonlinearities. Based on this lemma, solvability conditions for the H ∞ control of 2-D nonlinear stochastic systems in the form of LMIs (linear matrix inequalities) are derived. A numerical example illustrates the effectiveness of the proposed results.
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The authors would like to thank the Associate Editor and anonymous reviewers for their constructive comments and suggestions which led to the considerable improvement of the presentation of this paper.
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Dai, J., Guo, Z. & Wang, S. Robust H ∞ Control for a Class of 2-D Nonlinear Discrete Stochastic Systems. Circuits Syst Signal Process 32, 2297–2316 (2013). https://doi.org/10.1007/s00034-013-9573-8
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DOI: https://doi.org/10.1007/s00034-013-9573-8