Finite-time distributed quantized H ∞ filtering for multi-sensor systems under hybrid cyber-attacks
Xinran Xu, Zehua Ye, Dan Zhang · International Journal of Systems Science · 2025
This paper studies the distributed quantized H∞ filtering problem of multi-sensor systems under hybrid cyber-attacks. Firstly, the logarithmic quantizers are introduced to address the problem of limited bandwidth in the communication network, and then these quantized data are transmitted to the filters. Secondly, a dual hidden Markov model (HMM) is introduced to model the attack behaviours that occur in the measurement information transmission (MIT) network, and the asynchronous problem between the attack modes and the filter modes is solved. Afterwards, the sufficient conditions for the filtering error system in the framework of finite-time boundedness (FTB) are derived. Finally, the efficacy of the proposed method is verified through a simulation example.