Synthesis of variable gain robust output feedback controllers for a class of uncertain Lipschitz nonlinear systems

This paper proposes a variable gain robust output feedback controller for a class of uncertain Lipschitz nonlinear systems. The variable gain robust output feedback controller is designed so as to reduce the effect of uncertainties and Lipschitz nonlinearities. In this paper, we show sufficient conditions for the existence of the proposed variable gain robust output feedback controller for uncertain Lipschitz nonlinear systems. Finally, numerical examples are presented.