Resilient H∞ State Estimation for State-Saturated Systems: A Dynamic Event-Triggered Approach

This paper is concerned with the dynamic event-triggered H-infinity state estimation problem for a class of discrete time-delay systems subject to state saturations and gain perturbations. In order to reduce energy consumption, a dynamic event-triggered mechanism is employed to decide whether the received measurement output should be transmitted to the corresponding state estimator or not. The aim of this paper is to design a dynamic event-triggered resilient H-infinity state estimator such that the error dynamics of state estimation is asymptotically stable with a prescribed H-infinity performance index. By using the Lyapunov method, a sufficient condition is derived to guarantee the existence of the desired state estimator whose gain matrix is obtained by solving a set of matrix inequalities. An illustrate example is provided to demonstrate the effectiveness of the proposed state estimation scheme.