Bank-to-turn roll-yaw-pitch autopilot design using dynamic nonlinear inversion and PD-eigenvalue assignment

Abstract

This paper presents the design and simulation of an autopilot for a nonaxisymmetric missile model to robustly track planar bank-to-turn (BTT) maneuvers while regulating sideslip. The method used to design the autopilot relies on trajectory linearization and is realized through two controller subdesigns. The first design problem involves finding a nonlinear dynamic inverse for the plant. The second design involves designing a trajectory stabilizing controller using a parallel D-eigenvalue stability concept developed for linear time varying (LTV) systems. The autopilot designed by this method is then compared with autopilots designed using two other nonlinear methods.