Missile flight control with dynamic inversion and structured singular value synthesis

An integrated methodology incorporating both dynamic inversion and structured singular value synthesis is employed to design a robust nonlinear autopilot for an air-to-air missile. The nonlinear control elements include nested fast and slow inversion loops which, when closed in the absence of modeling errors, yield a system which is approximately linear. A feedback control law is then designed for this closed-loop system in the presence of structured uncertainties. The current controller architecture addresses those uncertainties and modeling errors which pertain to the fast dynamics.