Wang Xin, Xu Rui, Huang Tingwen, Kurths Jurgen
IEEE Trans Neural Netw Learn Syst. 2024 Jun;35(6):8524-8534. doi: 10.1109/TNNLS.2022.3230508. Epub 2024 Jun 3.
This article investigates the event-triggered adaptive containment control problem for a class of stochastic nonlinear multiagent systems with unmeasurable states. A stochastic system with unknown heterogeneous dynamics is established to describe the agents in a random vibration environment. Besides, the uncertain nonlinear dynamics are approximated by radial basis function neural networks (NNs), and the unmeasured states are estimated by constructing the NN-based observer. In addition, the switching-threshold-based event-triggered control method is adopted with the hope of reducing communication consumption and balancing system performance and network constraints. Moreover, we develop the novel distributed containment controller by utilizing the adaptive backstepping control strategy and the dynamic surface control (DSC) approach such that the output of each follower converges to the convex hull spanned by multiple leaders, and all signals of the closed-loop system are cooperatively semi-globally uniformly ultimately bounded in mean square. Finally, we verify the efficiency of the proposed controller by the simulation examples.
本文研究了一类具有不可测状态的随机非线性多智能体系统的事件触发自适应包容控制问题。建立了一个具有未知异质动力学的随机系统,以描述处于随机振动环境中的智能体。此外,不确定非线性动力学由径向基函数神经网络(NNs)逼近,未测量状态通过构建基于NN的观测器进行估计。另外,采用基于切换阈值的事件触发控制方法,以减少通信消耗并平衡系统性能和网络约束。此外,我们利用自适应反步控制策略和动态表面控制(DSC)方法开发了新颖的分布式包容控制器,使得每个跟随者的输出收敛到由多个领导者所跨越的凸包,并且闭环系统的所有信号在均方意义下协同半全局一致最终有界。最后,通过仿真例子验证了所提控制器的有效性。