宇航学报

宇航学报 ›› 2016, Vol. 37 ›› Issue (2): 189-194.doi: 10.3873/j.issn.1000-1328.2016.02.008

• 制导、导航与控制 • 上一篇    下一篇

一种基于CW方程的交会远程导引终端误差分析新方法

王为，王翔，龚胜平   

  1. 1.中国空间技术研究院 载人航天总体部，北京100094；2. 清华大学 航天航空学院，北京100084
  • 收稿日期:2015-03-19 修回日期:2015-07-16 出版日期:2016-02-15 发布日期:2016-02-25
  • 基金资助:

    总装预先研究项目(010103)

A New Method for Rendezvous Remote Guidance Terminal Error Analysis Based on CW Equation

WANG Wei, WANG Xiang, GONG Sheng ping   

  1. 1. Institute of Manned Space Engineering，China Academy of Space Technology Beijing 100094，China；
     2. School of Aerospace Engineering, Tsinghua University， Beijing 100084，China
  • Received:2015-03-19 Revised:2015-07-16 Online:2016-02-15 Published:2016-02-25

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摘要：

直接采用轨道坐标系的相对位置和速度描述交会远程导引误差会产生误差放大的不合理现象，对远程导引误差的精确分析需寻求新的误差描述与分析方法。本文在算例分析的基础上提出了一种基于CW方程的远距离导引终端误差分析新方法，并利用该方法建立误差模型分析远程导引的误差分布与传播。分析结果表明基于CW方程的远程导引误差模型能较为准确地描述远程导引终端的误差状态和后续传播情况，适合在实际工程中用于描述远程导引终端精度指标。

关键词: 交会远程导引, 误差, CW方程

Abstract:

In traditional error analysis for rendezvous remote guidance, both relative position and velocity between chaser spacecraft and target spacecraft are used to describe the error state. The Monte Carlo simulation in this paper shows that this method will amplify the error state, because both relative position and velocity are correlative. So the traditional method for rendezvous remote guidance terminal error analysis is not quite reasonable. A new method for rendezvous remote guidance error analysis based on CW equation is proposed in this paper, and the error model constructed by this method is used to analyze the distribution and propagation of rendezvous remote guidance error. The result shows that the error model based on CW equation can more accurately describe the state and its propagation of rendezvous remote guidance terminal error than traditional method, so the new method is good to describe the accuracy index of rendezvous remote guidance in practical engineering.

Key words: Rendezvous remote guidance, Error； CW equation

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