Real-time prediction correction of telescope in day-time satellite laser ranging

SUN Ming-guo; GAO Peng-qi; LI Zhen-wei; DONG Xue; ZHAO You

doi:10.3788/OPE.20162413.0252

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Real-time prediction correction of telescope in day-time satellite laser ranging

更新时间：2020-08-13

- Real-time prediction correction of telescope in day-time satellite laser ranging
- Optics and Precision Engineering Vol. 24, Issue 10s, Pages: 252-258(2016)
- 作者机构：
  
  1. 中国科学院大学北京,中国,100049
  2. 中国科学院国家天文台长春人造卫星观测站,吉林长春,130117
  3. 中国科学院国家天文台北京,100012
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20162413.0252
  CLC： TH754;TN247
- Received：26 May 2016，
  
  Revised：12 June 2016，
  
  Published：14 November 2016
- 稿件说明：
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孙明国, 高鹏骐, 李振伟等. 白天卫星激光测距的望远镜实时指向修正[J]. 光学精密工程, 2016,24(10s): 252-258

SUN Ming-guo, GAO Peng-qi, LI Zhen-wei etc. Real-time prediction correction of telescope in day-time satellite laser ranging[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 252-258
孙明国, 高鹏骐, 李振伟等. 白天卫星激光测距的望远镜实时指向修正[J]. 光学精密工程, 2016,24(10s): 252-258 DOI： 10.3788/OPE.20162413.0252.

SUN Ming-guo, GAO Peng-qi, LI Zhen-wei etc. Real-time prediction correction of telescope in day-time satellite laser ranging[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 252-258 DOI： 10.3788/OPE.20162413.0252.

摘要

为了提高白天卫星激光测距目标的观测效率，减小观测员的工作量，利用实测数据来计算预报的时间偏差，并对下一圈的实测预报进行指向修正。对望远镜指向进行大气折射修正和三轴误差修正，以实测数据的距离信息计算预报时间偏差，即利用一天内前几个弧段的实测数据，包括晚上数据来计算预报的时间偏差。然后，对下一圈的轨道预报进行时间偏差修正，分析和比较改正后的偏靶量和改正前的偏靶量。实验结果表明：传统的M-M大气折射修正模型和经纬仪三轴改正模型可以使望远镜指向精度（RMS）达到5～10"，满足白天卫星激光测距的要求（10"）。利用时间偏差修正预报指向可以使偏靶量减小1～3"，部分修正量多达8"，偏靶量减小，说明该方法是可行的。

Abstract

To increases the working quantities of observer without high observation efficiency

the measured data was used to calculate the predicted time bias

which can correct the time bias of prediction of the targets in the next pass. The telescope pointing corrections were performed at first

involving the atmospheric refraction modification and the tri-axial error correction. The predicted time bias was calculated with distance information of measured data

which means to calculate the predicted time bias with the measured data of the first few segmental arcs

including data of night. Finally the time bias in the prediction of track at next round was corrected and evaluated. Experimental result shows that the traditional M-M atmospheric refraction correction model and theodolite tri-axial correction model can increase the (RMS) of telescope pointing to 5~10"

which can meet requirement of satellite laser ranging in the daytime (10"). The bias quantity of target can be decreased by 1~3" by correcting the prediction pointing of time bias. Partial correction quantity can be as much as 8".

关键词

Keywords

references

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