Dear Editor, This letter aims to investigate the problem of attack detection and state estimation when the system suffers from external malicious attacks. A finite-time reduce-order observer is designed, which can ach...Dear Editor, This letter aims to investigate the problem of attack detection and state estimation when the system suffers from external malicious attacks. A finite-time reduce-order observer is designed, which can achieve attack detection at the preset time instant. Meanwhile, it is shown that the protection of the key nodes greatly improves the efficiency of secure state estimation. Finally, the proposed theory is applied to a general cyber-physical system to illustrate its effectiveness.展开更多
基金supported by the National Natural Science Foundation of China (62233004, 62073076, 61803166)the Jiangsu Provincial Key Laboratory of Networked Collective Intelligence (BM2017002)+1 种基金the Fundamental Research Funds for the Central Universities (3208002102A2)Fundamental Research Funds for the Central Universities (2242022k30038)。
文摘Dear Editor, This letter aims to investigate the problem of attack detection and state estimation when the system suffers from external malicious attacks. A finite-time reduce-order observer is designed, which can achieve attack detection at the preset time instant. Meanwhile, it is shown that the protection of the key nodes greatly improves the efficiency of secure state estimation. Finally, the proposed theory is applied to a general cyber-physical system to illustrate its effectiveness.
