基于大椭圆单星无源探测弹道导弹射向估计

Course Heading Estimation Based on HEO with Single Satellite Passive Detection

天基预警系统是国家战略预警系统的重要组成部分,而单星探测预警是天基预警系统发展的必经历程和重要环节,传统方法多基于地球同步轨道卫星,对于高纬度地区估计精度很低。本文主要讨论单颗大椭圆预警卫星能否及早给出导弹射向估计的问题。通过建立弹道导弹飞行的动量模型,提出了基于单星观测视线对来袭导弹射向的估计算法,提高了单星观测情况下的预警精度。仿真计算结果表明,本文方法对于天基预警系统引导地基预警雷达具有较高的精度和很好的实用价值。

The early warning of single satellite is a necessary process and an important part of the early warning system.As forepart warning,it is very important to give trajectory course information early to radar system for putting a tail on the missile.In this paper,based on the missile momentum equation,taking into account the basic physics' restrictions in missile's manufacture and flight,a new method is established to obtain the trajectory course by early warning of single geosynchronous satellite,without prior information supporting.The corresponding simulation computation results show its correctness and value in this paper.