A Decomposition-Based Approach to Byzantine-Resilient Distributed State Estimation

This paper is concerned with the problem of resilient distributed state estimation for a linear system using a network of agents, some of which are subject to the Byzantine attacks. By introducing a refined canonical decomposition form of the system, a novel resilient distributed state estimation st...

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Bibliographic Details
Published inChinese Control and Decision Conference pp. 28 - 35
Main Authors Gao, Rui, Chai, Tianyou
Format Conference Proceeding
LanguageEnglish
Published IEEE 16.05.2025
Subjects
Byzantine agents
decomposition
detectability
Linear systems
Redundancy
resilient distributed state estimation
Spread spectrum communication
State estimation
Sufficient conditions
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Summary:This paper is concerned with the problem of resilient distributed state estimation for a linear system using a network of agents, some of which are subject to the Byzantine attacks. By introducing a refined canonical decomposition form of the system, a novel resilient distributed state estimation strategy is proposed. Necessary and sufficient conditions under which the regular agents can still asymptotically estimate the state of the system despite the adversarial behaviors of the Byzantine agents are established. In contrast to the existing Jordan canonical form-based strategies, the proposed strategy can reduce the measurement redundancy requirement of the agents in the network. Finally, an example is given to demonstrate the effectiveness of the proposed strategy.
ISSN:1948-9447
DOI:10.1109/CCDC65474.2025.11090695