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2023, 02, v.22;No.85 66-74
DoS攻击下基于观测器的多智能体系统一致性控制
基金项目(Foundation): 国家自然科学基金青年基金项目(62103103);; 江苏省自然科学基金青年基金项目(BK20210223)
邮箱(Email):
DOI: 10.12194/j.ntu.20221128001
摘要:

研究了在拒绝服务(denial-of-service,DoS)攻击下部分状态可测的线性多智能体系统的一致性问题。首先,提出一种新的事件触发控制策略,通过引入一类基于输出信息对智能体状态进行估计的观测器,有效减少了控制器更新的频率;然后,在存在攻击的情况下,建立数学模型,获得了关于攻击允许的攻击频率和持续时间的充分条件,在此条件下系统可以保持一致;接着,利用Lyapunov稳定性理论对所提出的控制策略进行了严格的验证,并且在闭环系统中排除了芝诺(Zeno)行为;最后,给出一个仿真算例验证了所提方法的有效性。仿真结果表明:在存在Dos攻击的情况下,系统仍能渐进地实现一致性。

Abstract:

This paper considers consensus problem of linear multi-agent systems(MASs) under denial-of-service(DoS) attacks and partial measurable states. A novel event-triggered control strategy is developed, where a class of state observer is incorporated to estimate the agent′s state based on output information. Sufficient conditions are established for the allowable attack frequency and attack duration of DoS attacks, under which consensus can be preserved.The proposed control strategy is rigorously proved by virtue of Lyapunov theory, and the Zeno behavior can be excluded in the closed-loop system. Finally, a simulation example is presented to verify the effectiveness of the proposed method. The simulation study show that the consensus can be achieved gradually when it is under the attack of DoS.

参考文献

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基本信息:

DOI:10.12194/j.ntu.20221128001

中图分类号:TP273

引用信息:

[1]钟叶,曹阳.DoS攻击下基于观测器的多智能体系统一致性控制[J],2023,22(02):66-74.DOI:10.12194/j.ntu.20221128001.

基金信息:

国家自然科学基金青年基金项目(62103103);; 江苏省自然科学基金青年基金项目(BK20210223)

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