Title :
Variable structure autopilot for high angle of attack maneuvers using on-off thrusters
Author :
Thukral, Ajay ; Innocenti, Mario
Author_Institution :
Dept. of Aerosp. Eng., Auburn Univ., AL, USA
Abstract :
The paper describes the application of variable structure techniques to the synthesis of a longitudinal autopilot for a missile performing a heading reversal maneuver, which requires angles of attack greater than 90 degrees. In this region, the system dynamics are nonlinear and highly uncertain due to the variation of aerodynamic coefficients. The control gains designed for a point flight condition do not require scheduling and the controller structure is implemented using a blending of aerodynamic, reaction jets and main engine actuation
Keywords :
control system synthesis; missile control; nonlinear control systems; uncertain systems; variable structure systems; aerodynamic coefficient variation; heading reversal maneuver; high angle-of-attack maneuvers; longitudinal autopilot synthesis; main engine actuation; missile; nonlinear highly uncertain dynamics; on-off thrusters; reaction jets; variable structure autopilot; Actuators; Aerodynamics; Aircraft propulsion; Control system synthesis; Engines; Equations; Missiles; Nonlinear dynamical systems; Testing; Variable structure systems;
Conference_Titel :
Decision and Control, 1994., Proceedings of the 33rd IEEE Conference on
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
0-7803-1968-0
DOI :
10.1109/CDC.1994.411766
