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LEO空间碎片甚短弧角度数据初轨确定方法对比

雷祥旭 夏胜夫 杨洋 王啸臻 张郑元 李振伟 桑吉章

雷祥旭, 夏胜夫, 杨洋, 王啸臻, 张郑元, 李振伟, 桑吉章. LEO空间碎片甚短弧角度数据初轨确定方法对比[J]. 空间科学学报. doi: 10.11728/cjss2022.05.211026108
引用本文: 雷祥旭, 夏胜夫, 杨洋, 王啸臻, 张郑元, 李振伟, 桑吉章. LEO空间碎片甚短弧角度数据初轨确定方法对比[J]. 空间科学学报. doi: 10.11728/cjss2022.05.211026108
Lei Xiangxu, Xia Shengfu, Yang Yang, Wang Xiaozhen, Zhang Zhengyuan, Li Zhenwei, Sang Jizhang. Comparison of Initial Orbit Determination Methods with Very-short-arc Angle Observations from LEO Space Debris (in Chinese). Chinese Journal of Space Science, xxxx, x(x): x-xx doi: 10.11728/cjss2022.05.211026108
Citation: Lei Xiangxu, Xia Shengfu, Yang Yang, Wang Xiaozhen, Zhang Zhengyuan, Li Zhenwei, Sang Jizhang. Comparison of Initial Orbit Determination Methods with Very-short-arc Angle Observations from LEO Space Debris (in Chinese). Chinese Journal of Space Science, xxxx, x(x): x-xx doi: 10.11728/cjss2022.05.211026108

LEO空间碎片甚短弧角度数据初轨确定方法对比

doi: 10.11728/cjss2022.05.211026108
基金项目: 国家自然科学基金项目(41874035),武汉大学地球空间环境与大地测量教育部重点实验室开放基金项目(21-01-02)和重庆市教委科学技术研究项目(KJQN202200701)共同资助
详细信息
    作者简介:

    雷祥旭:E-mail:xxlei@whu.edu.cn

  • 中图分类号: P228,V412.4+1

Comparison of Initial Orbit Determination Methods with Very-short-arc Angle Observations from LEO Space Debris

  • 摘要: 光学观测是空间目标观测中最常见的一种观测方式。采用扫描模式工作时,光学观测得到的观测弧段弧长通常很短,有时甚至不到被观测空间目标运行周期的1%,这样的角度数据被称为甚短弧角度数据。基于近圆LEO空间碎片地基实测场景,研究比较仅利用角度数据进行初始轨道确定常用方法的性能差异,分析观测弧长对不同初轨确定算法的定轨成功率和误差的影响,为初轨确定工作提供参考。对比分析了常用的几种方法,包括Laplace方法、Gauss方法、Gooding方法和近几年提出的距离搜索算法等。大规模实测数据处理结果显示,距离搜索算法的成功率高于90%,初轨半长轴统计误差仅为25 km。初轨结果表明,距离搜索法定轨成功率高于其他算法。研究成果可为解决空间碎片初轨确定问题提供参考。

     

  • 图  1  仿真观测LEO目标轨道近地点高度、偏心率分布

    Figure  1.  Orbit distributions of LEO objects for generating simulated observations

    图  2  空间目标观测弧段数目和观测数据弧长累计分布

    Figure  2.  Arc number of the space objects and the accumulated ratio of the arcs with different length

    图  3  地基光电阵观测到的目标轨道参数分布(近地点高度、倾角与空间目标数量)

    Figure  3.  Distribution of the orbit elements of the space objects obtained by the ground-based EO array

    表  1  仿真地基监测LEO目标10~30 s弧长数据初轨结果

    Table  1.   IOD results of the arcs with length ranging from 10~30 s of LEO objects with ground-based observations

    方法RMS/(")成功率/(%)半长轴误差/km
    Gauss096.050
    0.592.580
    540.04000
    1032.55000
    Laplace092.5170
    0.541.7220
    52.5250
    100.81270
    Gooding097.555
    0.564.2345
    58.3800
    104.2830
    下载: 导出CSV

    表  2  仿真地基监测LEO目标30~60 s弧长数据初轨结果

    Table  2.   IOD results of the arcs with length ranging from 30~60 s of LEO objects with ground-based observations

    方法RMS/(")成功率/(%)半长轴误差/km
    Gauss0100.050
    0.592.560
    585.01500
    1080.04500
    Laplace029.2300
    0.535.0320
    521.7290
    1010.8260
    Gooding096.650
    0.595.8280
    556.7300
    1030.8300
    下载: 导出CSV

    表  3  识别出的空间目标和观测弧段数量

    Table  3.   Number of the identified space objects and the arcs

    日期观测弧段
    数量
    识别出所属目标的弧段数量识别出的空间目标数量
    20170824410034581299
    2017082516261396594
    20170826489441631587
    下载: 导出CSV

    表  4  地基光电阵监测LEO目标观测数据初轨结果

    Table  4.   IOD results of space objects observed by the ground-based EO array

    方法弧长/s成功率/(%)半长轴误差/km
    Gauss10~3052.51800
    30~6094.4600
    Laplace10~308.6250
    30~6027.6260
    Gooding10~3033.1265
    30~6081.2285
    RS method10~3072.1050
    30~6087.8625
    下载: 导出CSV

    表  5  仿真天基监测LEO目标10~30 s弧长数据初轨确定结果

    Table  5.   IOD results of the arcs with length ranging in 10~30 s of LEO objects with space-based observations

    方法RMS/(")成功率/(%)半长轴误差/km
    Gauss072.1430
    0.557.6500
    534.72000
    1029.54000
    Gooding080.1190
    0.567.2290
    554.6570
    1047.8780
    下载: 导出CSV

    表  6  仿真天基监测LEO目标30~60 s弧长数据初轨确定结果

    Table  6.   IOD results of the arcs with length ranging in 30~60 s of LEO objects with space-based observations

    方法RMS(")成功率(%)半长轴误差(km)
    Gauss069.1130
    0.568.2150
    561.0500
    1059.0800
    Gooding098.0130
    0.590.0230
    558.8380
    1032.4522
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-10-26
  • 录用日期:  2022-04-11
  • 修回日期:  2022-05-07
  • 网络出版日期:  2022-09-22

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