Interval observer design of discrete-time systems under stealthy attacks

被引：0

作者：

Liu K. ^{[1
]}

Zhang Q.-R. ^{[1
]}

Guo H. ^{[1
]}

Liu T. ^{[2
]}

Xia Y.-Q. ^{[1
]}

机构：

[1] School of Automation, Beijing Institute of Technology, Beijing

[2] School of Information, Beijing Wuzi University, Beijing

来源：

Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2020年 / 37卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Interval observer; Networked control system; Stealthy attacks;

D O I：

10.7641/CTA.2020.90618

中图分类号：

学科分类号：

摘要：

This paper investigates the security estimation of networked control system under stealthy attacks. Firstly, the upper and lower bounds of the attack signals are obtained according to the condition that the attacks remain stealthy. Secondly, based on the bounds of the attacks, an interval observer is designed in the original coordinates. Furthermore, the design conditions of the gain matrix are relaxed by a transformation of coordinates, and the design method of this interval observer is given. Then, an approach is proposed to calculate the optimal observer gain based on the theory of H∞filtering, and the optimal gain matrix is obtianed by solving a linear matrix inequality. Finally, a numerical example is given to verify the effectiveness of the proposed method. © 2020, Editorial Department of Control Theory & Applications South China University of Technology. All right reserved.

引用

页码：1673 / 1680

页数：7

共 26 条

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