现代防御技术 ›› 2018, Vol. 46 ›› Issue (6): 24-29.doi: 10.3969/j.issn.1009-086x.2018.06.004

• 导弹技术 • 上一篇    下一篇

弹道导弹过关机点状态估计方法研究

杜广洋1, 郑学合2   

  1. 1. 北京电子工程总体研究所, 北京 100854;
    2. 中国航天科工集团有限公司 第二研究院, 北京 100854
  • 出版日期:2018-11-30 发布日期:2020-10-22
  • 作者简介:杜广洋(1981-), 男, 黑龙江哈尔滨人。高工, 博士, 主要从事探测制导系统总体技术, 信号与信息处理等。通信地址:100854 北京市142信箱30分箱 E-mail:zhanglin821129@163.com

State Estimation Method for Ballistic Missile over Shutdown Point

DU Guang-yang1, ZHENG Xue-he2   

  1. 1.Beijing Institute of Electronic System Engineering, Beijing 100854, China;
    2.The Second Research Academy of CASIC, Beijing 100854, China
  • Online:2018-11-30 Published:2020-10-22

摘要: 弹道导弹飞行主动段和自由飞行段的运动学模型差别很大, 对导弹过关机点状态的准确及时估计, 对于跟踪信息处理方式的切换意义重大。基于雷达跟踪信息, 提出将推力加速度作为特征量估计导弹过关机点状态, 并推导了观测方程。针对观测方程非线性问题, 通过对多个随机变量的线性化, 利用递推最小二乘(RLS)算法获得了推力加速度的递推估计。通过误差分析, 给出了过关机点状态估计门限计算方法。仿真表明, 该估计方法能够准确及时地给出过关机点状态估计结果。

关键词: 弹道导弹, 关机点, 雷达跟踪, 推力加速度, 线性化, 递推最小二乘

Abstract: The kinematic models of the powered phase and the free flight phase of a ballistic missile are different. The accurate estimation of the shutdown state is of great significance to the handover of the tracking information processing mode. Based on radar tracking, the thrust acceleration is used as the eigenvalue to estimate the shutdown state. The observational equation is derived. In view of the nonlinear problem of the observation equation, the recursive least square (RLS) algorithm is used to obtain the recursive estimation of the thrust acceleration by the linearization of random variables. Through the error analysis, the method of calculating the threshold of shutdown state is given. The simulation shows that the estimation method can give the shutdown state results in time and accurately.

Key words: ballistic missile, shutdown, radar tracking, thrust acceleration, linearization, recursive least square

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