导弹快速自瞄准方法及仿真研究

Research on Auto-collimation Method and Simulation for Ballistic Missile

为使弹道导弹在满足一定瞄准精度要求的条件下,缩短发射准备时间,提出了一种二位置快速自瞄准新方法。不同于传统的二位置定向方法,该方法不需要知道发射点的纬度,且转位角度可以根据需要来选择。推导了二位置自瞄准方法的计算公式,分析了影响瞄准精度的主要因素,并进行了数字仿真。仿真结果表明,在系统误差为3倍标准差,随机误差为万分之五的条件下,二位置自瞄准方位角最大误差小于5′.该方法可以满足使用组合制导而对初始定向精度要求稍低,对快速机动性要求较高场合的导弹瞄准要求。

A two-position auto-collimation method was proposed to shorten preparation time of launch for ballistic missile under a certain collimation precision. Different from traditional two-position locating method, the method doesn＇t need to know the latitude of launch position and the indexing-angle can be chose freely. The-calculation formula of two-position collimation was deduced, main factors which influence the collimation precision were analyzed, a numeric simulation was carried out. Simulation results show that maximum azimuth error of collimation is less than 5′, under conditions of system error of triple standard deviation and random error of 0. 000 5. The method can satisfy aiming requirement of the missile at the situations of utilizing integrated guidance system, lower initial collimation precision and higher requirement of fast maneuverability.