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Sentinel-6A attitude modeling with dual GNSS antennas and its impact on precise orbit determination
Jin B(金彪)1,2,3; Chen, Shanshan4; Li, Min5; Yue, Fuzhan1; Zhao, Liqian1
发表期刊GPS SOLUTIONS
2023-01
卷号27期号:1
DOI10.1007/s10291-022-01346-9
产权排序第3完成单位
收录类别SCI ; EI
关键词Sentinel-6A GPS Galileo Precise orbit determination Attitude modeling Dual antennas
摘要

The Sentinel-6 mission aims to provide high-precision ocean altimetry measurements. Altimeter processing relies on highly accurate knowledge of satellite position and attitude. For precise orbit determination (POD), the Sentinel-6A spacecraft is equipped with a dual-constellation global navigation satellite system (GNSS) receiver and dual GNSS POD antennas. The satellite attitude is indispensable for connecting the satellite body reference frame and the inertial system. The actual satellite attitude is determined from the dual-antenna-based orbit differences and the antenna baseline information. We developed a yaw-attitude model for Sentinel-6A based on 75 days of data in 2021. Single-receiver ambiguity resolution is carried out to further explore the orbit determination accuracy. Different orbits, including the global positioning system (GPS)-only, Galileo-only, GPS/Galileo-combined orbits related to the GNSS POD antenna and orbit based on the data collected by the GNSS radio occultation (GNSS-RO) POD antenna (GNSS-RO orbit), are generated and their consistency is analyzed to investigate the impact of the attitude model and ambiguity resolution on POD. With the established model, the consistency between orbits determined using dual-antenna observations is improved by 41, 70 and 53% in along-track, cross-track and radial directions with respect to the nominal attitude. Compared with the GPS/Galileo-combined solution, the 3D RMS errors of the GPS-only and Galileo-only solutions are better than 4 and 3 mm, and a 12.6 mm RMS is obtained for the GNSS-RO orbit. The STD of satellite laser ranging (SLR) residuals for GPS/Galileo-combined solutions is improved from 14 mm with nominal attitude to 9 mm with the established attitude model. A 10 mm consistency of GNSS-RO, GPS-only and Galileo-only orbits with SLR observations is also achieved.

资助项目National Natural Science Foundation of China[41974041] ; National Natural Science Foundation of China[42074032] ; National Natural Science Foundation of China[41931075] ; National Natural Science Foundation of China[42030109]
项目资助者National Natural Science Foundation of China[41974041, 42074032, 41931075, 42030109]
语种英语
学科领域电子、通信与自动控制技术
学科门类工学 ; 工学::信息与通信工程
文章类型Article
出版者Springer Science and Business Media Deutschland GmbH
出版地TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
ISSN1080-5370
URL查看原文
WOS记录号WOS:000873729900002
WOS研究方向Remote Sensing
WOS类目Remote Sensing
EI入藏号20224312991786
EI主题词Global positioning system
EI分类号655.2 Satellites - 716 Telecommunication ; Radar, Radio and Television
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/25604
专题应用天文研究组
通讯作者Li, Min
作者单位1.Space Star Technology Co., Ltd., Beijing, 100194, China;
2.University of Chinese Academy of Sciences, Beijing, 100049, China;
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China;
4.Beijing Sixents Technology Co., Ltd., Beijing, 100094, China;
5.GNSS Research Center, Wuhan University, Wuhan, 430079, China
第一作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Jin B,Chen, Shanshan,Li, Min,et al. Sentinel-6A attitude modeling with dual GNSS antennas and its impact on precise orbit determination[J]. GPS SOLUTIONS,2023,27(1).
APA Jin B,Chen, Shanshan,Li, Min,Yue, Fuzhan,&Zhao, Liqian.(2023).Sentinel-6A attitude modeling with dual GNSS antennas and its impact on precise orbit determination.GPS SOLUTIONS,27(1).
MLA Jin B,et al."Sentinel-6A attitude modeling with dual GNSS antennas and its impact on precise orbit determination".GPS SOLUTIONS 27.1(2023).
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