大气层外拦截器关机基准制导法研究

大气层外拦截问题中 ,针对拦截弹飞行中段采用工作时间固定的固体燃料发动机的情况 ,提出一种关机基准中段制导方法。当发动机的推力特性给定时 ,通过估计关机时刻目标相对于拦截弹的运动状态 ,按照关机时刻相对速度垂直于视线方向的分量为零的原理来确定推力矢方向。仿真计算表明 ,对于拦截近程弹道目标的情况 ,这种制导方法可有效降低拦截脱靶量

Research on Burnout Reference Guidance Law for an Exo-atmospheric Interceptor

A midcourse burnout reference guidance law for an exo-atmospheric interceptor with solid engine is put forward . The orientation of thrust vector is determined by estimating the state of the target relative to the interceptor when burnout , according to the characteristics of the engine , based on the principle that the component of the relative velocity perpendicular to the line of sight when burnout is to be null. Simulation shows that the guidance law can reduce the miss distance effectively for short range ballistic missile interception .