Observer-based continuous-time networked control system design

This paper is concerned with observer-based H_∞ control for a networked control system (NCS) under simultaneous consideration of time-varying network-induced delays and packet dropouts. By taking the sensor-to-controller and controller-to-actuator network-induced delays and packet dropouts into full consideration and proposing a linear estimation-based delay compensation method, a new model for an observer-based NCS is established. Then the stabilization criteria for the considered NCS are derived. When transferring nonlinear matrix inequalities into linear matrix inequalities (LMIs), new bounding inequalities are proposed. A numerical example is given to illustrate the merits and effectiveness of the obtained results.