Event-based robust stabilization of uncertain networked control systems under quantization and denial-of-service attacks
Event-based robust stabilization of uncertain networked control systems under quantization and denial-of-service attacks
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DOI：
10.1016/j.ins.2018.05.019
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发表时间：
2018-08
期刊：
影响因子：
--
通讯作者：
Xiaoli Chen;Youguo Wang;Songlin Hu
中科院分区：
文献类型：
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作者：
Xiaoli Chen;Youguo Wang;Songlin Hu
研究了量化和拒绝服务攻击下不确定网络控制系统基于事件的鲁棒镇定问题。首先，提出了一种新的事件触发通信方案，如果检测到干扰信号的周期，则确定何时发送传感器的当前采样数据。其次，在所提出的事件触发通信方案下，所得到的闭环系统被建模为具有人工状态延迟的切换系统，其中参数不确定性，量化和拒绝服务干扰攻击被认为是在一个统一的框架。第三，通过引入时变分段Lyapunov-Krasovskii泛函，得到了设计期望的基于事件的状态反馈控制器的充分条件，使得闭环系统在DoS干扰攻击下指数稳定.建立了采样周期、干扰机周期和干扰机最小允许休眠周期之间的定量关系。最后，通过两个例子说明了该方法的有效性。
This paper is concerned with event-based robust stabilization of uncertain networked control systems under quantization and denial-of-service (DoS) attacks. First, a novel event-triggered communication scheme is proposed to determine when to transmit the sensor’s current sampled-data if the period of the jamming signal is detected. Second, under the proposed event-triggered communication scheme, the resultant closed-loop system is modeled as a switched system with an artificial state delay, in which parameter uncertainty, quantization, and DoS jamming attacks are considered in a unified framework. Third, by introducing a time-varying piecewise Lyapunov–Krasovskii functional, a sufficient condition is derived to design desired event-based state feedback controllers so that the exponential stability can be ensured for the resultant closed-loop system subject to DoS jamming attacks. Moreover, several quantitative relationships among the sampling period, the jammer period, and the minimum allowable sleeping period of the jammer are established. Finally, two examples are given to illustrate the effectiveness of the proposed method.