Parameterization of Sampled‐Data H∞ Output Feedback Controllers for General Nonlinear Systems

In this paper, we consider the H^∞ control problem for general nonlinear systems under sampled measurements. Sufficient conditions for the existence of H^∞ output feedback controllers are derived. The major contribution of this paper is to characterize a family of H^∞ output feedback controllers for nonaffine nonlinear systems under sampled measurements.