Kalman Filter of Switching System Under Hybrid Cyber Attack

被引:12
作者
Cai, Fenghuang [1 ]
Liao, Shuying [1 ]
Chen, Yucheng [2 ]
Wang, Wu [1 ]
机构
[1] Fuzhou Univ, Coll Elect Engn & Automat, Fuzhou 350108, Peoples R China
[2] Zhangzhou Inst Technol, Sch Informat Engn, Zhangzhou 363000, Peoples R China
关键词
Hybrid cyber-attack; switched system; Kalman filter; deception attack; denial-of-service attack; NETWORKED SYSTEMS; MECHANISM;
D O I
10.1109/TASE.2023.3277960
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Potential malicious attacks have been a significant security concern for network system applications. However, there are few studies on filtering for hybrid network attacks in switching systems. This paper considers a Kalman filtering problem for the switched systems that suffer from deception attacks and denial-of-service attacks. A new network transmission model for switching systems is established. Then, based on the minimum mean square error criterion, a Kalman filter with low conservatism is designed for the discrete-time switched system. The newly switched Kalman gain matrix is deduced including the random variation of the switching signal after being attacked by the network. Finally, the effectiveness of the proposed filter is verified by the numerical simulation. A switching system is considered to be a typical hybrid system. As it often works in a network environment, the switching signal is vulnerable to the network and thus to various cyber-attacks (e.g. spoofing attacks and denial-of-service attacks). Few studies have been conducted on the impact of switching signals in network transmission. To address this problem, this paper proposes a Kalman filter design method with low conservativeness, which describes network attacks and data loss by building a Kalman filter model associated with the switching signal in terms of satisfying Bernoulli random variables. For practitioners, the ability to recover data to a certain extent when the data transmission is affected by different network attacks will save a lot of costs and is important for improving the stability and performance of switching systems. Our future work will aim to improve the performance of different filtering algorithms under different cyber-attacks.
引用
收藏
页码:3310 / 3318
页数:9
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