Modelling and observer‐based <i>H</i> _∞ controller design for networked control systems

This study is concerned with modelling and observer‐based H ∞ controller design for a continuous‐time networked control system with network‐induced delays and packet dropouts. A new model for an observer‐based networked control system is first established by proposing a linear estimation‐based delay compensation method. Then some controller design criteria are obtained by constructing an interval time‐varying delay decomposition‐based Lyapunov functional. A new bounding inequality is introduced to transfer non‐linear matrix inequalities into a solvable optimisation problem. A numerical example is given to illustrate the merits and effectiveness of the obtained results.