A Robust Observer Design Method for Continuous-Time Lipschitz Nonlinear Systems

A new observer design method for Lipschitz nonlinear systems is proposed in the form of LMI optimization problem. Besides asymptotic stability, the proposed observer is robust against some nonlinear uncertainty. In addition, a new LMI approach for H
_infin
nonlinear observer designed is introduced. The new LMI formulation allows optimizations both on the H
_infin
cost and nonlinear uncertainty robustness