Event-triggered dynamic output feedback H∞ control via bilateral network

This paper is concerned with event-triggered dynamic output feedback H_∞ control for linear networked control systems (NCSs) through bilateral network. An output-based event-triggered communication scheme is introduced to determine which sampled output should be transmitted at which time instant to the controller through a network. Taking the event-triggered scheme and network-induced delays in both the sensor-to-controller channel and the controller-to-actuator channel into account, the closed-loop system is modeled as a linear system with two interval time-varying delays based on an input delay method and a delay partition method. By constructing a Lyapunov-Krasovskii functional, some delay-dependent criteria for H_∞ performance and controller design are established in terms of linear matrix inequalities. A numerical example is provided to validate the proposed results.