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具有随机通讯时延的离散网络化系统的H滤波器设计
引用本文:王武,林琼斌,杨富文.具有随机通讯时延的离散网络化系统的H滤波器设计[J].控制理论与应用,2007,24(3):366-370.
作者姓名:王武  林琼斌  杨富文
作者单位:福州大学,电气工程与自动化学院,福建,福州,350002
基金项目:国家自然科学基金资助项目(60474049, 60604027); 福建省自然科学基金资助项目(A0410012, A0510009).
摘    要:由于传感器和滤波器是通过有限带宽的网络连接的,因此系统的测量数据经常会出现时延,而且时延是随机的.本文讨论了具有一步随机通讯时延的离散网络化系统的H∞滤波器设计问题.利用线性矩阵不等式方法设计线性滤波器使得滤波误差系统是均方意义下指数稳定并具有给定的H∞性能.滤波器参数通过凸优化技术求解一个线性矩阵不等式得到.数值仿真表明设计方法的有效性.

关 键 词:离散网络化系统  随机通讯时延  H_∞滤波  线性矩阵不等式
文章编号:1000-8152(2007)03-0366-05
收稿时间:6/1/2005 12:00:00 AM
修稿时间:2005-06-012006-02-23

H-infinity filter design for discrete-time networked systems with random communication delays
WANG Wu,LIN Qiong-bin,YANG Fu-wen.H-infinity filter design for discrete-time networked systems with random communication delays[J].Control Theory & Applications,2007,24(3):366-370.
Authors:WANG Wu  LIN Qiong-bin  YANG Fu-wen
Institution:College of Electrical Engineering and Automation, Fuzhou University, Fuzhou Fujian 350002, China
Abstract:The sensors and filter are connected via a limited bandwidth communication channel.The system measure- ments are often subject to randomly varying communication delays.A H-infinity filtering problem is proposed for linear discrete-time networked systems with random communication delays.The problem addressed here is the design of a linear H-infinity filter such that the error systems are exponentially mean-square stable and guarantee a prescribed H-infinity per- formance in term of linear matrix inequality(LMI).The filter is then obtained by solving a LMI using convex optimization techniques.A numerical example is also provided to demonstrate the validity of the proposed design approach.
Keywords:discrete-time networked systems  random communication delays  H-infinity filtering  LMI
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