Observer design for networked control systems with nonlinear perturbations

In this paper, the problem of the observer-based control for networked control systems with nonlinear perturbations is investigated under the concerns of the synthesis effect of sampled-data, network induced delay, packet dropout and disordering. By using the Lyapunov-Krasovskii functionals, delay dependent stability criteria are given to guarantee the stability of the observer-based control systems. In terms of linear matrix inequality techniques, the observer design and maximum allowable delay bound of networked control systems can be obtained from the linear matrix inequality feasible solutions. Finally, a numerical example is given to illustrate the effectiveness of the proposed approach.