Finite time secure state estimation for linear cyber-physical systems with actuator and sensor attacks

被引：4

作者：

Liu, Ang ^{[1
]}

Ren, Yuwei ^{[1
,4
]}

Fang, Yixian ^{[2
]}

Song, Xinmin ^{[1
]}

Li, Chengdong ^{[3
]}

机构：

[1] Shandong Normal Univ, Sch Informat Sci & Engn, Jinan, Peoples R China

[2] Shandong Management Univ, Sch Informat Engn, Jinan, Peoples R China

[3] Shandong Jianzhu Univ, Sch Informat & Elect Engn, Jinan, Peoples R China

[4] Shandong Normal Univ, Sch Informat Sci & Engn, Jinan 250014, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL | 2023年 / 33卷 / 16期

基金：

中国国家自然科学基金;

关键词：

actuator attacks; cyber-physical systems; finite time observer; secure state estimation; sensor attacks; SPARSE ACTUATOR; OBSERVERS; FUTURE; CPSS;

D O I：

10.1002/rnc.6870

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This manuscript studies the problem of secure state estimation (SSE) for a class of linear discrete cyber-physical systems (CPSs) considered with output disturbances, actuator, and sensor attacks. The disturbances and attacks considered are unbounded. A finite time SSE (FTSSE) method is designed to realize SSE for CPSs in a predetermined finite time. First, a finite time observer is designed to implement the FTSSE for CPSs with actuator attacks and output disturbances. After that, the FTSSE method for CPSs with simultaneous sensor attacks is proposed by extending the designed finite time observer. The necessary conditions for the existence of the proposed FTSSE method are given, and its effectiveness is analyzed theoretically. In addition, the simultaneous estimation of disturbance and attack can be achieved by the designed estimator when the system satisfies some given conditions. Finally, the effectiveness of the designed method is verified by a simulation experiment.

引用

页码：9701 / 9717

页数：17

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