随机丢包和信道约束的网络控制系统滤波  

Filtering for networked control systems with random packet dropouts and channel constraints

作　　者：马运强 王宗跃 MA Yun-qiang;WANG Zong-yue(Department of Electrical Engineering, Anhui Technical College of Mechanical and Electrical Engineering, Wuhu 241000, China;Department of Electrical and Mechanical Engineering, Huaihai Technician Institute, Suqian 223800, China)

机构地区：[1]安徽机电职业技术学院电气工程学院,安徽芜湖241000 [2]淮海技师学院机电工程系,江苏宿迁223800

出　　处：《湖北师范大学学报（自然科学版）》2022年第2期43-49,共7页Journal of Hubei Normal University：Natural Science

基　　金：安徽质量工程项目(2020dsgzs12,2019jyxm0752);安徽职业教育提质培优行动计划项目(2020tzpy1801)。

摘　　要：针对网络控制系统存在随机丢包和信道约束等问题,研究一类H_(∞)滤波器设计方法。首先,引入随机伯努利序列建立传感器数据包丢失模型,运用两个独立事件描述网络信道约束的特征,并将滤波误差系统等效为含有两个子系统的离散切换系统。然后,通过Lyapunov函数和离散切换系统理论推导出滤波误差系统稳定性的判据,并给出滤波器参数矩阵求解的方法。最后,数值仿真阐述所设计H_(∞)滤波器的有效性。The method of H_(∞) filtering for networked control systems is studied to solve the problem of randomly date packet dropouts and channel constraints.Firstly,the model of sensor data packet dropouts is established by a random Bernoulli sequence,the characteristics of network channel constraints are described by two independent events,as well as the filtering error systems are modeled of a discrete switching system with two sub-systems.Secondly,based on the Lyapunov function and discrete switching systems theory,the stability criterion of the filtering error systems is derived,and the method for solving the filter parameter matrix is also given.Finally,a numerical example shows the effectiveness of the designed H_(∞) filter.

关 键 词：随机丢包 信道约束 H_(∞)滤波器 离散切换系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]