Robust adaptive control of a class of nonlinear systems by internal model design

This paper addresses a global robust adaptive control problem for a class of uncertain nonlinear systems by output feedback control. The problem will be solved by the internal model design method. Our problem formulation includes the stabilization and synchronization problem of some typical nonlinear systems as special cases. As an illustration, our main result will be applied to solving a robust output synchronization problem of the generalized Lorenz system and an uncertain Harmonic system.