In this paper, we study the consensus tracking problem for high-order nonlinear uncertain multiagent systems. By using the fixed-time control technique and the modified addition of a power integrator method, a novel distributed observer-based consensus protocol is proposed. Compared with the existing results in the literature, the proposed protocol can achieve consensus tracking in a fixed time independent of initial conditions even in the presence of unknown parameters and nonlinear uncertainties bounded by positive functions. Simulation examples are given to illustrate the effectiveness of the theoretical results.

中文翻译：

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高阶动力学非线性不确定多智能体系统的全局固定时间一致性跟踪


在本文中，我们研究了高阶非线性不确定多智能体系统的共识跟踪问题。通过使用固定时间控制技术和改进的功率积分器添加方法，提出了一种新颖的基于分布式观察者的共识协议。与文献中现有的结果相比，即使存在未知参数和受正函数限制的非线性不确定性，所提出的协议也可以在不依赖于初始条件的固定时间内实现共识跟踪。给出了仿真算例，说明了理论结果的有效性。