Agile Missile Controller Based on Adaptive Nonlinear Backstepping Control
For missile control engineers, this work provides a method to handle rapid nonlinear dynamics and uncertainties in agile maneuvers, though it is an incremental application of existing backstepping and adaptation techniques.
The paper designs a nonlinear adaptive autopilot for agile missiles using backstepping control with time-delay adaptation, addressing highly nonlinear dynamics and aerodynamic uncertainties during agile turns. The approach achieves angle-of-attack tracking under these challenging conditions.
This paper deals with a nonlinear adaptive autopilot design for agile missile systems. In advance of the autopilot design, an investigation of the agile turn maneuver, based on the trajectory optimization, is performed to determine state behaviors during the agile turn phase. This investigation shows that there exist highly nonlinear, rapidly changing dynamics and aerodynamic uncertainties. To handle of these difficulties, we propose a longitudinal autopilot for angle-of-attack tracking based on backstepping control methodology in conjunction with the time-delay adaptation scheme.