Distributed Byzantine-Resilient Observer for High-Order Integrator Multiagent Systems on Directed Graphs: An Edge-Based Approach

• 成果类型: Article
• 署名作者: Gong, Xin; Li, Xiuxian; Shu, Zhan
• 署名单位: Southeast University - China; Tongji University; Tongji University; University of Alberta
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2023.3321866
• 发表日期: 2024
• 页码: 3294-3300
• 关键词: Byzantine attacks; Directed graphs; distributed observer; nonautonomous leader; resilient observer

摘要

This work deals with the distributed Byzantine-resilient observer (DBRO) design problem for continuous-time high-order integrator multiagent systems on directed graphs, which intends to estimate the leader states accurately in a finite-time interval. A new kind of edge-based DBRO is first formulated for the followers to estimate each order of the nonautonomous leader's state, which is implemented in a cascading manner. Then, the finite-time zero-error estimation performance of the above DBRO is guaranteed for both time-invariant and time-varying strongly (2f + 1)-robust directed topologies, based on strictly nonsmooth analysis and mathematical induction method. Finally, the practicability and validity of this new DBRO are illustrated via a numerical simulation example.