导航星光的预测及干扰

连文浩; 王永杰; 杨小龙; 范振钦

doi:10.3788/OPE.20152313.0815

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导航星光的预测及干扰

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- 导航星光的预测及干扰
- Prediction and interference of navigation star
- 光学精密工程 2015年23卷第10z期页码：814-823
- 作者机构：
  
  中国人民解放军63981部队, 湖北武汉 430311
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.51075398)()
- DOI：10.3788/OPE.20152313.0815
  中图分类号： V448.222
- 收稿日期：2015-06-05，
  
  修回日期：2015-06-30，
  
  纸质出版日期：2015-11-14
- 稿件说明：
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连文浩, 王永杰, 杨小龙等. 导航星光的预测及干扰[J]. 光学精密工程, 2015,23(10z): 814-823

LIAN Wen-hao, WANG Yong-jie, YANG Xiao-long etc. Prediction and interference of navigation star[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 814-823
连文浩, 王永杰, 杨小龙等. 导航星光的预测及干扰[J]. 光学精密工程, 2015,23(10z): 814-823 DOI： 10.3788/OPE.20152313.0815.

LIAN Wen-hao, WANG Yong-jie, YANG Xiao-long etc. Prediction and interference of navigation star[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 814-823 DOI： 10.3788/OPE.20152313.0815.

摘要

研究了星光折射间接敏感地平导航中捕获折射星光方向和分布的方法。为了能够准确捕获折射星

避免"失星"的出现

提出一种基于航天器轨道的折射星预测方法。该方法能够预测出航天器位于特定位置时可发生折射的星光方向

从而调整星敏感器姿态进行提前捕获。文中根据日月地-航天器的几何位置关系

研究分析了各天体干扰因素对折射星数量及分布的影响。仿真结果表明

通过范围预测可知折射星成带状分布在航天器轨道两侧

其数量与轨道高度密切相关

而通过准确预测方向可使航天器导航精度提高1倍。文章指出:日月地各天体干扰的影响会使航天器运行出现折射星导航空白段

导致导航误差迅速增大

在某些时刻瞬时径向位置误差可增大20倍

此种情况需要考虑应用其他星光导航方法辅助导航。本文提出的基于轨道的折射星光预测方法以及日月地对折射星光的干扰研究具有重要的工程应用价值。

Abstract

How to capture the directions and distribution of refraction stars in refraction starlight navigation was researched. To obtain the information of the refraction stars

a method to analyze the distribution of refraction stars on standard orbit was proposed. By proposed method

the direction of refractive starlight from a spacecraft at a special position could be obtained by adjusting the attitude of a star sensitive sensor. On the basis of star information gotten in specific time interval

three kinds of influences on refraction stars' number and distribution were calculated according to the geometric positional relationship of the sun

the moon and the earth. Comparing the stars' number and distribution before and after the interferences

a navigation simulation was analyzed. The experimental results show that the largest source of interference is the earth

followed by the sun

the moon. Under the three interferences

refraction navigation

blank section may exist for the spacecraft. In the range of navigation blank section navigation error increases rapidly

instantaneous position error in

direction could be 20 times larger than before. It is verified that the method proposed to analyze interference on refraction starlight navigation has important practical significance

especially in design of navigation methods

adjusting star sensor's attitude

and predicting navigation blank section.

关键词

Keywords

references

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