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A new time delay calibration method to improve the service performance of RDSS in the BDS
Li, Xiaojie1,2,3; Hu, Xiaogong2,3; Guo, Rui1; Tang, Chengpan2,3; Liu, Shuai1; Huang, Shuanglin1; Jie, Xin1; Pu, Junyu1; Chen, Jianbing4
2020-11-15
Source PublicationADVANCES IN SPACE RESEARCH
ISSN0273-1177
Volume66Issue:10Pages:2365-2377
AbstractThe radio determination satellite service (RDSS) is an advantageous and unique aspect of the BeiDou Navigation Satellite System (BDS) because other satellite navigation systems do not incorporate the RDSS. Due to the ageing of RDSS equipment, there is a long-term drift in various types of RDSS equipment time delays. There are some differences in the RDSS positioning accuracy with the change in the out-station beams, which seriously affects the positioning accuracy and service capability of the RDSS system. At present, the time delay calibration method involves sending the device to the equipment verification field to remeasure the time delay, which is cumbersome and time-consuming. The service performance and availability of the RDSS system have become greatly degraded. Therefore, a simple and efficient RDSS time delay calibration method has become an important topic for the global BeiDou system. In this study, the time delays of all channels, in-station beams, and out-station beams were obtained by the O-C method (O is the measured value and C is the theoretical value). The experiments were performed using BeiDou RDSS data in continuous 8-day tests involving five RDSS users. The results showed that the time delay accuracies of the RDSS channels, in-station beams, and out-station beams were 2.37 ns, 1.63 ns, and 2.39 ns, respectively. The positioning tests were performed based on the original and adjusted delays. The mean horizontal positioning accuracy of the five RDSS users improved from 19.71 to 4.14 m, with an average increase of 77%. The positioning accuracy achieved in this paper is much better than that of 20 m in the Beijing calibration area at present. (C) 2020 Published by Elsevier Ltd on behalf of COSPAR.
KeywordBeidou navigation satellite system (BDS) Geostationary Earth orbit (GEO) satellite RDSS Channel In-station link Out-station link Time delay calibration RDSS positioning
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1016/j.asr.2020.08.012
Language英语
Funding ProjectNational Natural Science Foundation of China[41704037] ; National Natural Science Foundation of China[41874043] ; National Natural Science Foundation of China[41804030]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaEngineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectEngineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000579741200007
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/81967
Collection中国科学院国家天文台
Corresponding AuthorLi, Xiaojie
Affiliation1.32021 Troops, Beijing 100094, Peoples R China
2.Shanghai Key Lab Space Positioning & Nav, Shanghai 200030, Peoples R China
3.Shanghai Astron Observ, Shanghai 200030, Peoples R China
4.China Top Commun Co Ltd, Beijing 100088, Peoples R China
Recommended Citation
GB/T 7714
Li, Xiaojie,Hu, Xiaogong,Guo, Rui,et al. A new time delay calibration method to improve the service performance of RDSS in the BDS[J]. ADVANCES IN SPACE RESEARCH,2020,66(10):2365-2377.
APA Li, Xiaojie.,Hu, Xiaogong.,Guo, Rui.,Tang, Chengpan.,Liu, Shuai.,...&Chen, Jianbing.(2020).A new time delay calibration method to improve the service performance of RDSS in the BDS.ADVANCES IN SPACE RESEARCH,66(10),2365-2377.
MLA Li, Xiaojie,et al."A new time delay calibration method to improve the service performance of RDSS in the BDS".ADVANCES IN SPACE RESEARCH 66.10(2020):2365-2377.
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