Distributed secure estimation for cyber-physical systems with fading measurements and false data injection attacks
Distributed secure estimation for cyber-physical systems with fading measurements and false data injection attacks
复制标题
具有衰落测量和虚假数据注入攻击的网络物理系统的分布式安全估计
DOI：
10.1080/00207721.2020.1801883
复制
发表时间：
2020-08
影响因子：
4.3
通讯作者：
Yang Hongjiu
中科院分区：
文献类型：
--
作者：
Li Li;Guo Jingjing;Xia Yuanqing;Yang Hongjiu
This paper is concerned with the distributed secure estimation problem for a cyber-physical system (CPS) with fading measurements and false data injection (FDI) attacks, where the fading probability of measurements is assumed to be individual for each sensor, and the FDI attacks occur at the physical system layer to intensively modify the system's state. For improving security of the system, an attack detection mechanism is proposed based on an FDI attack observer constructed by minimising the upper bound of observation error covariance. Then a complete distributed state estimation algorithm is given to provide locally reliable estimation. A sufficient condition is provided to guarantee boundedness of the estimation error covariance. Finally, the effectiveness of the proposed method is illustrated by numerical simulation and practical example simulation.
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