This paper proposes a robust event-triggered observer design scheme for the systems fulfilling the one-sided Lipschitz and quadratic inner-boundedness conditions. The suggested observer scheme differs from the traditional methods because it deals with a less conservative and a more generalized class of nonlinear systems while utilizing fewer resources and meeting performance requirements. In contrast to the conventional Lipschitz methods, the proposed method considers a broader class of OSL systems, and it can avoid a high-gain observer, which can be sensitive to the measurement noise. The proposed linear matrix inequalities-based observer design guarantees the uniformly ultimately bounded convergence of the observation error with an exponential decay under disturbances. Also, several scenarios selecting a threshold for event-triggering schemes from an observer design perspective are addressed along with their advantages and issues. Simulation results are provided to validate the established results.

本文针对满足单边Lipschitz和二次内界条件的系统提出了一种鲁棒的事件触发观测器设计方案。建议的观测器方案与传统方法不同，因为它处理的是非线性系统的保守性和通用性较低，同时使用较少的资源并满足性能要求的情况。与传统的Lipschitz方法相比，该方法考虑了更广泛的OSL系统类别，并且可以避免对测量噪声敏感的高增益观察者。所提出的基于线性矩阵不等式的观测器设计保证了观测误差的均匀最终有界收敛性以及扰动下的指数衰减。还，解决了从观察者设计的角度为事件触发方案选择阈值的几种方案，以及它们的优点和问题。提供仿真结果以验证已建立的结果。