Study on 6-DOF trajectory simulation of course correction projectiles

The makeup of course correction projectile weapon system and its working principle were studied, the models of impulse force and impulse moment were established, the pursuit guidance laws used for course correction were analyzed and the method of establishing 6-DOF trajectory model of course correction projectile was presented. Typical course correction trajectory, orbit of laser detector optical axis and the influence of acting point of impulse force on miss distance were simulated by 6-DOF course correction trajectory simulation program. Simulation results indicate that direct impulse force nearby the mass center can achieve better effect on correcting final trajectory, the miss distance of velocity pursuit guidance law is smaller than that of body pursuit guidance law.