Abstract:

A missile reaction jet/aerodynamic compound control system design method based on adaptive sliding mode control (ASMC) and fuzzy logic is proposed. The scheme separates the whole control system into two parts. The aerodynamic control subsystem (ACS) is designed on ASMC theory. Because ASMC is robust to parametric perturbations and external disturbances, the performance of system can be guaranteed greatly. The fuzzy logic is used to design the reaction-jet control subsystem (RCS). The reaction-jet thrust is adjusted by fuzzy inference rulers on different conditions, and the response speed of ACS can be improved as a result. When the structure of whole control system is fixed, genetic algorithm (GA) is used to optimize the parameters, and the coordination between RCS and ACS is realized. Simulation results show that the proposed scheme can track the maneuver command with higher precision and faster response speed than traditional ones, and it is applicable to design the autopilot of reaction-jet and aerodynamic compound control missile.

Key words: reactionjet/aerodynamic , compound , control,  , adaptive , sliding , mode , control,  , fuzzy , logic,  , genetic , algorithm