Delayed observer-based H∞ control for networked control systems

In this paper, the observer-based H∞H∞ control problem for networked control systems is investigated. Moreover, network-induced time-varying delays are considered to model the real world applications. The Luenberger-type observer is first designed for state estimation, then the observer-based controller is further developed. By applying the Lyapunov–Krasovskii functional approach, delay-dependent conditions are established to ensure that the prescribed H∞H∞ performance can be achieved. Finally, the effectiveness and usefulness of our obtained theoretical results are demonstrated by two examples.