Robust switching-type H∞ filter design for linear uncertain systems with time-varying delay |
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Authors: | Dan Ye |
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Affiliation: | College of Information Science and Engineering, Northeastern University, Shenyang 110189, PR China Key Laboratory of Integrated Automation of Process Industry (Ministry of Education), Northeastern University, Shenyang 110189, PR China |
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Abstract: | This paper is concerned with the problem of robust H∞ filter design for a class of linear uncertain systems with time-varying delay. The uncertainty parameters are supposed to be time-varying, unknown, but bounded, which appear affinely in the matrices of the considered system model. Based on linear matrix inequality (LMI) method and switching laws, a new switching-type filter is designed to guarantee the asymptotic stability and H∞ performance level of the filtering error systems. The key feature is that the new proposed filter parameters are switching between certain fixed gains automatically via the designed switching law. It is shown that the new filter design method is less conservative than the traditional fixed gain filter design method. An example is given to illustrate the validity of the proposed design. |
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Keywords: | Robust H&infin filtering Time-delay systems Switching-type filter Linear matrix inequalities (LMIs) |
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