On the Design of Robust Output Feedback Controllers for Uncertain Systems

This paper considers the problem of robust control for a class of uncertain time-varying dynamical systems with real time-varying parameter uncertainity. Interest is focused on the design of linear dynamic output feedback control and two problems are addressed. The first one is the robust stabilization and the other is the problem of robust H¿ like performance. A technique is proposed for designing stabilizing controllers for both problems by converting them into `scaled´ H¿ control problems which do not involve parameter uncertainty.