| 摘要: |
| 在“神舟”任务中，航天测量船的定轨精度直接影响着整个地面测控系统的完成质量。
在分析研究测量船误差源对近地近圆轨道确定影响的基础上，提出了提高海上定轨精度急需
解决的问题及研究方向，建立了测速数据的船姿船速修正模型，设计了自适应信息检测
算法，实现了测量船复杂误差的精确仿真并基于次序统计量研究了初轨根数的选优问题。这
些技术的应用使初轨计算半长轴外符合精度提高了3倍，为提高测量船定轨精度发挥了重
要作用。 |
| 关键词: 航天测量船 定轨精度 误差分析 数据处理 |
| DOI： |
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| 基金项目: |
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| Ways to improve orbit determination precision of space TT&C ships |
| ZHU Wei-kang,LI Hui-fen,CHEN De-ming,WU Hui-hua,CHEN Hong-ying |
| () |
| Abstract: |
| In the task of Shenzhou, the orbit determination precision of space TT
&C ships influences directly the quality of earth TT&C system. This paper bases
i
ts research on the analysis of error source′s influence on the determination of
near-earth and near-circular orbit, and proposes imminent problems and research
di
rection of improving maritime orbit determination precision. It establi
shes a mod
el for adjusting ship position and speed, designs a self-adjusting information c
hecking calculation method, realizes accurate simulation of ship complex error a
nd researches on selection of preliminary orbit elements based on sequence stati
stics. By the application of these technology, the outer-accord precision of pre
liminary orbit calculation is improved by 3 times.The technology playes an impor
tant role in improving the orbit determination precision of space TT&C ships. |
| Key words: space TT&C ship orbit determination precision error analysis data processing |
《电讯技术》编辑部 