Nonfragile asynchronous control of fuzzy Markov jump systems under hybrid cyber-attacks
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摘要:
针对具有混合网络攻击和时变时延的Takagi-Sugeno (T-S)模糊马尔可夫跳变系统(MJSs),提出系统的非脆弱异步控制方法。利用T-S模糊方法基于模糊规则建立马尔可夫跳变系统模型,同时在通信网络中考虑由欺骗攻击和拒绝服务(DoS)攻击组成的混合网络攻击,并在测量信道中采用动态事件触发通信机制,从而降低不必要的数据传输;借助Lyapunov-Krasovskii方法和线性矩阵不等式技术推导出了闭环系统随机稳定性的充分条件,并利用线性不等式技术求解出非脆弱异步控制器增益矩阵。通过仿真算例验证了所提方法的正确性和有效性。
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关键词:
- T-S模糊马尔可夫跳变系统 /
- 拒绝服务攻击 /
- 欺骗攻击 /
- 动态事件触发 /
- 非脆弱异步控制
Abstract:The nonfragile asynchronous control method is proposed for Takagi-Sugeno (T-S) fuzzy Markov jump systems (MJSs) with hybrid cyber-attacks and time-varying delays. Firstly, the Markov jump system model is established by utilizing the T-S fuzzy method under fuzzy rules. The hybrid cyber-attacks consisting of deception attacks and denial-of-service (DoS) attacks are considered in the communication network, and the dynamic event-triggered communication mechanism is adopted in the measurement channel to reduce unnecessary data transmission. Secondly, sufficient conditions for the stochastic stability of the closed-loop system are derived in terms of the Lyapunov-Krasovskii method and linear matrix inequality technique. The linear matrix inequality technique is used to solve the nonfragile asynchronous control gain matrices. Lastly, simulation examples verify the correctness and effectiveness of the proposed method.
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表 1 不同时延最大值的状态项指标比较
Table 1. Comparison of state item indicators under different maximum delay values
归一化时延最大值 状态项指标 仿真步数 3 32.6534 50 5 36.3448 50 7 44.5768 50 表 2 不同控制方法的性能指标比较
Table 2. Comparison of performance indicators under different control methods
控制方法 仿真步数 稳定步数 状态项指标 本文方法 50 23 35.3751 文献[9] 50 49 71.2678 -
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