NONLINEAR CONTROL LAW WITH APPLICATION TO HIGH ANGLE-OF-ATTACK FLIGHT

This paper proposes a general structure for aircraft control at whose core are several blocks of dynamic inversion of the controlled system. This control law is then applied to a nonlinear model of the high angle-of-attack research vehicle (HARV). The control law itself uses the complete nonlinear aerodata base and has no restrictions on the manner in which the control inputs enter the dynamic equations. An algorithm that handles surface limiting while ensuring a solution to the moment equation inverse is incorporated into the control law. The performance of the control law is demonstrated via simulation of a selected supermaneuver.