Multiobjective Optimization Algorithm of Survivability of Ballistic Missile in Boost Phase

To improve the survivability of ballistic missile,taking the boost trajectory and boost motor of ballistic missile as optimization object,a multiobjective optimization algorithm on the basis of hybrid genetic arithmetic was proposed based on the boost movement model,trajectory design model,propulsion model and infrared radiation model of ballistic missile.The multiobjective optimization algorithm was applied to the boost penetration design of ballistic missile.By optimization,the flying time in boost phase reduces by 20.4%,and the infrared radiation reduces by 22.3%.The optimization algorithm can be applied to improve the survivability of ballistic missile in boost phase effectively.