Precise orbit determination using satellite laser ranging and inter-satellite link observations for BDS-3 satellites

被引：0
|
作者：
Qu W. [1 ]
Huang Y. [1 ,2 ,3 ,4 ]
Xu J. [5 ]
Sun S. [5 ]
Zhou S. [1 ,2 ]
Yang Y. [5 ]
He B. [6 ]
Hu X. [1 ,2 ,3 ]
机构：
[1] Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai
[2] Shanghai Key Laboratory of Space Navigation and Positioning Techniques, Shanghai
[3] Key Laboratory of Planetary Sciences, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai
[4] School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing
[5] Beijing Satellite Navigation Center, Beijing
[6] Zhejiang University of Water Resources and Electric Power, Hangzhou
来源：
Cehui Xuebao/Acta Geodaetica et Cartographica Sinica | 2023年 / 52卷 / 09期
基金：
中国国家自然科学基金;
关键词：
BDS; inter-satellite link; precise orbit determination; satellite laser ranging;
D O I：
10.11947/j.AGCS.2023.20220558
中图分类号：
学科分类号：
摘要：
BDS satellites are equipped with the inter-satellite link (ISL) equipment, which can observe other satellites and ground monitoring stations with Ka-band measurements. The relative satellite clock and geometric distance can be separated to decouple the satellite orbit and clock difference using the dual one-way ISL ranging measurements of BDS satellites. The geometric distance is taken as the observation and is combined with the ground-based measurements to determine the precision orbit of BDS satellites. Satellite laser ranging has no carrier phase ambiguity and clock difference and is not affected by the ionosphere. SLR data and data processing are relatively simple, which can be used as a measurement technology independent of GNSS. This paper focuses on precision orbit determination for 11 BDS satellites (MEO/IGSO/GEO) based on SLR and ISL measurements. The accuracy of the BDS-3 satellite orbit determination based on the SLR and the inter-satellite links is greatly improved compared with the SLR data only, especially for GEO and IGSO satellites. The satellite orbit accuracy of the three orbit types is equivalent. The accuracy is 4.2 cm for radial component and 30.2 cm for 3D position. The accuracy of 12 h and 24 h predicted orbit is about 40.0 cm for the 3D position for MEO satellites, less than 60.0 cm for IGSO satellites and about 1 m for GEO satellites. The Earth rotation parameters are estimated simultaneously with the satellite orbit. Although the accuracy of the pole motion and LOD is about 3.0 mas and 0.35 ms due to the small amount of SLR observation data, the method is feasible to calculate the earth rotation parameters. The results show that the high precision orbit of the navigation satellites can be obtained using ISL measurements and small amount of the SLR data. If BDS constellation can be intensively tracked, it will help to improve the orbital accuracy. The results can also provide a reference for the solutions of BDS spatial datum parameters. © 2023 SinoMaps Press. All rights reserved.
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页码：1437 / 1448
页数：11
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