An Improved H∞ Filter Design for Nonlinear System with Time-delay via T-S Fuzzy Models
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摘要: 基于Takagi-Sugeno模糊模型, 研究了时变时滞非线性模糊系统的滤波器设计方法. 通过构造改进的Lyapunov泛函, 结合自由权矩阵与矩阵解耦方法, 提出模糊H∞滤波器存在充分条件. 此充分条件较已有文献中类似条件具有更低的保守性. 并给出示例说明了所给出方法的有效性.Abstract: This paper is concerned with the filter design for nonlinear systems with time-varying delay via Takagi-Sugeno fuzzy model approach. Some sufficient conditions of the existence of fuzzy H∞ filter are established through constructing an improved Lyapunov functional candidate, which could overcome the conservatism of the existing ones. The main technique used is the free weighting matrix method combined with a matrix decoupling approach. An illustrative example is given to show the effectiveness of the method.
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