Finite-Time Sliding-Mode Control of Markovian Jump Cyber-Physical Systems Against Randomly Occurring Injection Attacks

Finite-Time Sliding-Mode Control of Markovian Jump Cyber-Physical Systems Against Randomly Occurring Injection Attacks
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马尔可夫跳跃网络物理系统对抗随机发生注入攻击的有限时间滑模控制

DOI:
10.1109/tac.2019.2926156
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发表时间:
2020-03
影响因子:
6.8
通讯作者:
Jun Song
Jun Song
中科院分区:
计算机科学2区
文献类型:
--
作者:
Zhiru Cao;Yugang Niu;Jun Song

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研究了一类马尔可夫跳变信息物理系统的有限时间滑模控制问题。假设经由通信网络传输的控制输入信号易受网络攻击,其中对手可以概率方式将错误数据注入控制信号中。同时,可能存在随机发生的不确定性和峰值有界的外部干扰。一个合适的滑模控制器的设计,使得状态轨迹被驱动到指定的滑动表面在给定的有限时间(可能很短)的时间间隔。通过引入划分策略,分别分析了到达阶段和滑动阶段的随机有限时间有界性。一个关键的特点是,一组模式依赖的足够小的标量被引入到一些耦合的李雅普诺夫不等式,使得可行的解决方案很容易获得的随机有限时间有界的闭环系统。最后,以单连杆机器人手臂模型为例说明了该方法。
This paper addresses a finite-time sliding-mode control problem for a class of Markovian jump cyber-physical systems. It is assumed that the control input signals transmitted via a communication network are vulnerable to cyber-attacks, in which the adversaries may inject false data in a probabilistic way into the control signals. Meanwhile, there may exist randomly occurring uncertainties and peak-bounded external disturbances. A suitable sliding mode controller is designed such that state trajectories are driven onto the specified sliding surface during a given finite-time (possibly short) interval. By introducing a partitioning strategy, the stochastic finite-time boundedness over the reaching phase and the sliding motion phase is analyzed, respectively. A key feature is that a set of mode-dependent sufficiently small scalars are introduced into some coupled Lyapunov inequalities such that the feasible solutions are easily obtained for the stochastic finite-time boundedness of the closed-loop systems. Finally, the practical system about a single-link robot-arm model is given to illustrate the present method.
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