Observer-Based Output-Feedback Control for Nonlinear Time-Delay Systems
针对一类具有未知状态时变时滞的严格反馈非线性系统，提出了基于全阶和降阶观测器的两种输出反馈控制方案，利用静态增益的李雅普诺夫-克拉索夫斯基泛函设计无记忆控制策略，保证闭环系统信号有界且渐近稳定。
In this article, the output feedback control design problem for a class of strict-feedback nonlinear systems with unknown state time-varying delays is addressed. Two output feedback control schemes are considered which are based on full-order and reduced-order observer, respectively. Lyapunov–Krasovskii functionals with static gain are used to develop novel memoryless control strategies. The above work ensures that all the signals in the closed-loop system are bounded and the system is asymptotically stable. Finally, two simulation examples illustrate the effectiveness of the two control schemes we proposed.