全文下载:2013010086
苏初盛,肖民卿
(福建师范大学 数学与计算机科学学院, 福建 福州 350007)
摘要: 研究参数不确定δ算子系统鲁棒保成本l2-l∞滤波问题。针对l2-l∞性能这一类扰动抑制度指标,设计滤波器,使滤波误差动态系统是鲁棒渐近稳定的(当外部扰动恒为零时),l2-l∞性能指标上界尽可能的小,同时保证保成本函数具有一定的上界。采用线性矩阵不等式方法,给出了鲁棒保成本l2-l∞滤波器存在的充分条件,进而提出滤波器的设计方法。 数值算例验证了该方法的可行性。
关键词: δ算子系统;l2-l∞滤波器; 滤波误差动态系统;线性矩阵不等式
中图分类号: TP 273 文献标志码: A
Robust l2-l∞ Guaranteed Filtering for δ-Operator Systems with Parameter Uncertainties
SU Chu-sheng, XIAO Min-qing
(School of Mathematics and Computer Science, Fujian Normal University, Fuzhou 350007,China)
Abstract: This paper is concerned with the problem of robust guaranteed l2-l∞ filtering for δ-operator systems with parameter uncertainties.The objective is to design a guaranteed filter which guarantees that the filter error dynamic system is robust asymptotically stable and the upper bound of the l2-l∞ performance index is as small as possible,while the cost function value is a specified upper bound for all admissible uncertainties,Base on linear matrix inequality approach, a sufficient condition for the existence of the filter is presented,and then a design method of such filter is proposed. A numerical example is provided to demonstrate the effectiveness of the proposed method.
Key words: δ-operator system; l2-l∞ filter;filter error dynamic system;linear matrix inequality
收稿日期:2012-08-24
基金项目: 福建省高校服务海西建设重点项目(1240104).
作者简介: 苏初盛(1986—), 男, 硕士研究生.