Research on control method of pulse thrusters based on genetic algorithm

In order to effectively intercept maneuverable target in aerosphere,a new control method of pulse thrusters is presented.A mathematical model of pulse thrusters for interceptor is constituted.And with a view to characteristic of combine control,symmetrical fire logic is presented to respectively track control commands of axes in body coordinate system.In order to reduce tracking error of control command,a genetic algorithm is given to optimize quantities of used pulse thrusters.After analyzing performances of interceptor missile,a fitness function is presented.Moreover,immigration method is introduced to maintain population diversity,and search global optimization parameters.Simulation results show that this control method of pulse thrusters can gain satisfied hit precision for maneuverable target in aerosphere.