Robust non-fragile state feedback control of discrete time-delay systems

The problem of designing robust non-fragile state feedback controllers for linear discrete systems with uncertainties and constant delays is studied. The system uncertainties are assumed to be polytopic, and the state feedback gain uncertainties are norm-bounded. The H/sub /spl infin// norm is used to describe system performance. A method of designing robust non-fragile H/sub /spl infin// controllers is proposed in terms of linear matrix inequalities (LMIs). Numerical examples are given to illustrate the proposed results.