Using CEI for GEO orbit determination based on Beidou satellite calibration

被引：1
|
作者：
Fan M. [1 ]
Huang Y. [2 ,3 ]
Huang L. [1 ]
Chen S. [1 ]
Li Z. [1 ]
机构：
[1] Beijing Institute of Tracking and Telecommunications Technology, Beijing
[2] Shanghai Astronomical Observatory, Chinese Academy of Science, Shanghai
[3] University of Chinese Academy of Science, Beijing
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2021年 / 43卷 / 05期
关键词：
Accuracy analysis for orbit determination; Geostationary satellite orbit(GEO); Global navigation satellite system(GNSS); Short baseline interferometry; Tracking and data relay satellite system; Very long baseline interferometry;
D O I：
10.12305/j.issn.1001-506X.2021.05.18
中图分类号：
学科分类号：
摘要：
To improve the angular accuracy of connected-element interferometry (CEI) measurement for geostationary satellite orbit(GEO) satellites, the calibration based on radio source is needed to remove the most of common errors. The large aperture and high-gain antenna is usually necessary to receive weak signal from radio source. Using Beidou satellite for calibration is presented based on existing antenna in ground station. The CEI measurement is carried out for Tianlian GEO satellite on 20 km baseline between two antennas in using two sets of antenna equipment 20 km apart from Kashi TT&C station tracking and data relay satellite system (TDRSS). After calibration by Beidou satellite, the accuracy of time-delay measurement is 0. 03 ns. The position accuracy of orbit determination is 37 m using 7 h of ranging from single station and CEI measurements. The position uncertainty of 12 h prediction reaches 78 m. The result is corresponded to the accuracy of orbit determination of 24 h from multi-station ranging system 3 000 km apart. Therefore, using the calibrated CEI could effectively improve the utilization of ground stations and GEO orbit determination accuracy. © 2021, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：1303 / 1309
页数：6
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