中国空间科学技术

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外弹道重构的改进Bayes滤波

祝转民,李恒年,黄永宣,李济生   

  1. 西安交通大学系统工程研究所,西安交通大学系统工程研究所,西安交通大学系统工程研究所,西安卫星测控中心 西安710049 ,西安710049 ,西安710049 ,西安710043
  • 发布日期:2002-08-25

An Improved Bayes Filter to Rebuilding the Trajectory

Zhu Zhuanmin Li Hengnian Huang Yongxuan (System Engineering Institute, Xi'an Jiaotong University, Xi'an 710049) Li Jisheng (Xi'an Satellite Control Centre, Xi'an 710043)   

  • Online:2002-08-25

摘要: 由于被积函数及观测方程的复杂性 ,直接利用古典 Bayes方法估计外弹道参数是极其困难的 ,而 Kalman滤波等方法因数据质量问题经常出现发散现象。为了有效重构外弹道 ,基于 Bayes方法 ,提出了外弹道重构的改进 Bayes滤波算法 ,并给出了递推公式。仿真计算证明 ,该方法可有效解决滤波发散问题和实际工程中的精度问题 ,是切实可行的方法。

关键词: 外弹道, 参数估计, 滤波, 方法

Abstract: Because of the complex of the integral function and the observation equation, it is very difficult to estimate the trajectory parameters according to the Bayes method. The Kalman Filter is often divergence. For rebuild of the trajectory, a approximate filter of condition rules with recursive formula which based on the Bayes method is put forward in the paper. It can estimate the state parameters of the system exactly. The simulation demonstrates the divergence of estimation and accuracy problems for project can be solved by this approach.