IEEE Transactions on Automatic Control, Vol.44, No.9, 1672-1687, 1999
A separation principle for the stabilization of a class of nonlinear systems
It is shown that the performance of a globally bounded partial state feedback control of a certain class of nonlinear systems can be recovered by a sufficiently fast high-gain observer. The performance recovery includes recovery of asymptotic stability of the origin, the region of attraction, and trajectories.