Ultimate Boundedness Control of Uncertain Systems with Application to Roll Coupled Aircraft Maneuver.

摘要

The reprint treats the question of robust trajectory control of a class of nonlinear systems which can be decoupled by state variable feedback. It is assumed that the system matrices are unknown but bounded. A nonlinear control law is derived such that in the closed-loop system, the tracking error is uniformly bounded, and tends to a certain small neighborhood of the origin. Furthermore, the error dynamics are asymptotically decoupled in an approximate sense. The controller includes a reference trajectory generator and use the integral feedback of the tracking error. Based on this result, a flight control system is designed for the control of a roll angle, angle of attack and sideslop in rapid, nonlinear maneuvers of aircraft. Simulation result are presented to show that large, simultaneous lateral and longitudinal maneuvers can be performed in spite of the uncertainty in the stability derivatives. (KR)