Secure estimation for cyber-physical systems under adversarial actuator attacks

被引:18
|
作者
Xie, Chun-Hua [1 ]
Yang, Guang-Hong [1 ,2 ]
机构
[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
[2] Northeastern Univ, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Liaoning, Peoples R China
来源
IET CONTROL THEORY AND APPLICATIONS | 2017年 / 11卷 / 17期
基金
中国国家自然科学基金;
关键词
STATE ESTIMATION; INPUT ESTIMATION; SENSOR ATTACKS; OBSERVERS;
D O I
10.1049/iet-cta.2017.0561
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Almost all of the available literature on secure state estimation focus on sensor attacks. Unlike the existing results, this study investigates the attack-resilient state estimation problem for continuous-time linear systems with sparse actuator attacks and process noises. It is assumed that, the attacker has limited resources and can only manipulate a certain number of actuators. Specifically, a novel switched observer is proposed with milder design conditions which are derived in terms of linear matrix (in)equalities. It is shown that, the observer not only provides an attack-resilient state estimation, but also guarantees that the resulting observer error system is with noise attenuation level which can be optimised. Finally, a simulation example of a linearised reduced-order aircraft system is provided to show the effectiveness of the proposed approach.
引用
收藏
页码:2939 / 2946
页数:8
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