ROBUST NONLINEAR CONTROLLER DESIGN FOR A LONGITUDINAL FLIGHT CONTROL PROBLEM

Abstract

ABSTRACT In this paper, the H ∞ approximate I/O linearization formulation and μ‐synthesis are employed to design a nonlinear controller for an aircraft longitudinal flight control problem. We propose modified nonlinear H ∞ controller formulas to approximately linearize the system and use μ‐synthesis to address tracking, regulation, and robustness issues.