Research on fire algorithm of pulse thrusters for interceptor missile

In order to ensure the control precision of lateral thrust for interceptor missile, a new fire algorithm of pulse thrusters is presented. With a view to defect of lateral thrust from spinning interceptor missile, a method to search fire direction and fire quantity of pulse thrusters is presented. And improved genetic algorithm is given. In this improved genetic algorithm, the genetic operation is amended to overcome the local optimization in simple genetic algorithm. According to an improved genetic algorithm, the fire quantity of pulse thrusters is optimized, and the track error of fire command is compensated to ensure the control precision of lateral thrust. Simulation results show that this fire algorithm can implement efficiently control mission of lateral thrust for interceptor missile as well as preferable performance.