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Beidou wide-area augmentation system clock error correction and performance verification

文献类型：期刊论文

作者Liu, Jiu-Long1,2; Cao, Yue-Ling2,3; Hu, Xiao-Gong2,3; Tang, Cheng-Pan2,3
刊名ADVANCES IN SPACE RESEARCH
出版日期2020-05-15
卷号65期号:10页码:2348-2359
关键词BDS-3 BDS-2 Equivalent clock error correction UDRE SBAS The satellite clock error
ISSN号0273-1177
DOI10.1016/j.asr.2020.02.010
英文摘要On December 27, 2018, the Beidou-3 System (BDS-3) has completed the deployment of 18 Medium Earth Orbit (MEO) satellites combined as a space constellation. In addition to the augmentation information for the new system signals B1C and B2a, the BDS-3 is compatible with the three augmentation information broadcast by the BDS-2 system for B1I and B3I signals: equivalent clock error correction, User Differential Ranging Error (UDRE) and Grid Ionosphere Vertical Error (GIVE). In this paper, the observation data of Beidou monitoring network are used to analyze the pseudo-range observation quality of the smooth transition signals B1I and B3I of BDS-2 and BDS-3. At the same time, the relationship between the equivalent clock error correction and the prediction error of the satellite clock is analyzed by using the Two-Way Satellite Time and Frequency Transfer (TWSTFT) data. The results show that the correlation between the equivalent clock error correction and the monitored clock error by using the TWSTFT data is greater than 60%. We calculate the UDRE by using the equivalent clock error correction. The results show that the satellite equivalent clock error correction can improve the accuracy of User Equivalent Range Error (UERE) by about 50%. This paper also compares the positioning accuracy of the BDS-2 satellites with the BDS-2 satellites combined BDS-3 satellites. The results show that the three-dimensional positioning accuracy is improved by about 30% after the BDS-3 satellites are added. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved.
WOS关键词ACCURACY
资助项目National key Research Program of China[2016YFB0501900]
WOS研究方向Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000533505500009
出版者ELSEVIER SCI LTD
资助机构National key Research Program of China ; National key Research Program of China ; National key Research Program of China ; National key Research Program of China ; National key Research Program of China ; National key Research Program of China ; National key Research Program of China ; National key Research Program of China
源URL[http://ir.bao.ac.cn/handle/114a11/54921]  
专题中国科学院国家天文台
通讯作者Liu, Jiu-Long; Cao, Yue-Ling
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, NanDan Rd 80, Shanghai 200030, Peoples R China
3.Shanghai Key Lab Space Nav & Posit Tech, Shanghai 200030, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jiu-Long,Cao, Yue-Ling,Hu, Xiao-Gong,et al. Beidou wide-area augmentation system clock error correction and performance verification[J]. ADVANCES IN SPACE RESEARCH,2020,65(10):2348-2359.
APA Liu, Jiu-Long,Cao, Yue-Ling,Hu, Xiao-Gong,&Tang, Cheng-Pan.(2020).Beidou wide-area augmentation system clock error correction and performance verification.ADVANCES IN SPACE RESEARCH,65(10),2348-2359.
MLA Liu, Jiu-Long,et al."Beidou wide-area augmentation system clock error correction and performance verification".ADVANCES IN SPACE RESEARCH 65.10(2020):2348-2359.

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来源：国家天文台

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