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非合作目标激光测距预报的实时修正方法研究
Alternative TitleResearch on Real-time Correction Method of Laser Ranging Prediction of Non-cooperative Target
张训方1,2; 赵雪1,2; 李荣旺1,3; 李祝莲1,3
Source Publication天文研究与技术(Astronomical Research & Technology)
2019-01
Volume16Issue:01Pages:25-32
DOI10.14005/j.cnki.issn1672-7673.20180426.002
ClassificationP173.3
Contribution Rank第1完成单位
Indexed ByCSCD
Keyword实时修正 时间根数偏差 非合作目标 轨道预报
Abstract

非合作目标的激光测距预报一般是基于双行根数(TLE)外推出来的,往往有较大偏差,对激光测距的成功率有较大影响。结合空间目标的轨道理论和实测的数据分析,预报的偏差主要是预测模型外推的空间目标在运行轨道上的平近点角与实际平近点角存在偏差。根据非合作目标在望远镜跟踪视场中的脱靶量,利用相关算法可以找到一个最佳的时间根数偏差量修正空间目标的平近点角。经过修正,空间目标的视位置偏差得到改善,距离偏差能够从几百米减小到几十米,提升了预期回波到达时刻的准确度,可以给单光子探测器提供更高精度的距离门控,提高测距成功率

Other Abstract

Prediction for laser ranging of non-cooperative target is extrapolated from the Two Line Elements (TLE) normally, which has relatively large deviation and affects the success rate of laser ranging mission. Based on the orbital theory and the measured data of space target, the deviation of the forecast is mainly due to the deviation of mean anomaly from the prediction model and the real mean anomaly of the spatial target in the orbit. According to the target's miss distance in the field of view of tracking telescope, the relative algorithm can be used to find the optimal time element deviation to correct the mean anomaly of the spatial target. After modification, the visual position deviation of the space target is improved, the distance deviation can be reduced from several hundred meters to tens of meters, which makes the echo arrival time expectation more accurate, and can provide a more precise range gate control for the single-photon detector, and improves the mission success rate of laser ranging.

Funding Project国家自然科学基金[11203071] ; 国家自然科学基金[U1631134]
Funding Organization国家自然科学基金[11203071, U1631134]
Language中文
Subject Area天体测量学
MOST Discipline Catalogue理学 ; 理学::天文学
ISSN1672-7673
CSCD IDCSCD:6415950
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12152
Collection应用天文研究组
Corresponding Author李荣旺
Affiliation1.中国科学院云南天文台,云南,昆明,650011
2.中国科学院大学,北京,100049
3.中国科学院空间目标与碎片观测重点实验室,中国科学院紫金山天文台,南京,210008
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
张训方,赵雪,李荣旺,等. 非合作目标激光测距预报的实时修正方法研究[J]. 天文研究与技术(Astronomical Research & Technology),2019,16(01):25-32.
APA 张训方,赵雪,李荣旺,&李祝莲.(2019).非合作目标激光测距预报的实时修正方法研究.天文研究与技术(Astronomical Research & Technology),16(01),25-32.
MLA 张训方,et al."非合作目标激光测距预报的实时修正方法研究".天文研究与技术(Astronomical Research & Technology) 16.01(2019):25-32.
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