Observer based guaranteed cost control of networked control systems

This paper is concerned with the guaranteed cost controller design for a class of networked control systems (NCSs), a new guaranteed cost function-the observer based guaranteed cost function are designed. The asymptotical stability of the observer output error is proved. A sufficient condition for the existence of a guaranteed cost controller for NCSs is presented by a set of linear matrix inequalities (LMIs). Accordingly, through a numerical example, the upper bound of guaranteed cost and the corresponding controller gain K are solved. Theoretical analysis through an example shows the effectiveness of the method.