大气外拦截器制导规律设计和仿真

Design and Simulation of Exo-atmosphere Kill Vehicle Guidance

文中基于拦截器的六自由度模型,采用中段的显示制导方法和末段变结构制导律(VSG)进行制导。给出了制导律的工程实现方法。最后针对几个实际问题进行了大量数字仿真,可以得到如下结论:VSG较比例制导律(PNG)可引起较小的脱靶量,何时进入末端制导的问题实质上是较小的工质消耗和足够的末端制导时间的一个权衡。

Based on the six degree-of-freedom model of interceptor,the exo-atmosphere kill vehicle(EKV)is guided by Lambert guidance law as the initial guidance,and variable structure guidance law(VSG)as the terminal guidance.Lots of simulations are carried out for certain conclusions are reached:VSG performs much better than PNG in diminishing the miss distance,the angle between EKV shooting plane and TBM shooting plane must be smaller enough to guarantee a successful intercept,the decision of when EKV begin terminal guidance should be made upon the trade-off of two con- siderations,which are fuel consuming and enough terminal guidance time.