Mitigation of the multipath effect in BDS-based time transfer using a wave-absorbing shield

doi:10.1016/j.asr.2018.05.008

NTSC-IR

	Mitigation of the multipath effect in BDS-based time transfer using a wave-absorbing shield
	Ge, Yulong 1,2,3; Yang, Xuhai 1,2,6; Qin, WeiJin 1,2; Yang, Haiyan 1,2; Guang, Wei 1,2; Zhou, Feng 5; Ouyang, Mingjun 1,2,3; Wang, Shengli 4
	2019-05-01
发表期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
卷号	63 期号:9 页码:2771-2783
摘要	The pseudorange multipath effect is a major unmodeled error source in Global Navigation Satellite System (GNSS) time transfer. It is critical to mitigate the pseudorange multipath effect in GNSS time transfer. To reduce such a multipath effect, we employ a technique of installing a wave-absorbing shield on GNSS stations. In this contribution, extensive evaluations were conducted with BeiDou Navigation Satellite System (BDS) datasets collected from the KUN1 and SHA1 stations of the international GNSS Monitoring and Assessment System (iGMAS) network in an eight-month period from January 1 to September 1, 2016. Comparative analysis demonstrated that the pseudorange multipath effect was reduced by 29.9-38.9% on all available frequencies of BDS. The solutions of BDS common-view (CV), all in view (AV), and precise point positioning (PPP) in a 31-day period were presented before and after the wave absorbing installation, respectively. After applying the wave-absorbing shield, the uncertainty improvement of BDS PPP time transfer was by 22.86, 21.48, 11.72, and 15.00% for the constellation combinations of GEO + IGSO + MEO, GEO + IGSO, GEO + MEO, and IGSO + MEO, respectively. Meanwhile, the uncertainty of CV time transfer was improved by 15.48, 24.18, 17.84, 29.69, and 15.26% for the constellation combinations of GEO + IGSO + MEO, GEO, IGSO, MEO and IGSO + MEO and 12.62, 20.94, 9.39, 29.02, and 14.38% for AV time transfer, respectively. Furthermore, the frequency and time stability were improved to varying degrees with the wave-absorbing shield installation. The results demonstrated that the type A uncertainty of BDS time transfer can be improved significantly by installing the wave-absorbing shield. Hence, it provides a good choice for high-precision GNSS time and frequency transfer with multipath mitigation by installing the wave-absorbing shield. (C) 2018 COSPAR. Published by Elsevier Ltd. All rights reserved.
关键词	BDS Time transfer Pseudorange multipath mitigation Wave-absorbing shield
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS
DOI	10.1016/j.asr.2018.05.008
关键词[WOS]	GPS ; PHASE
语种	英语
资助项目	National Natural Science Foundation of China[41104021] ; National Natural Science Foundation of China[11173026] ; National Natural Science Foundation of China[11703033] ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform"[DKA2017-12-02-24] ; iGMAS
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; National R&D Infrastructure and Facility Development Program of China, "Fundamental Science Data Sharing Platform" ; iGMAS ; iGMAS
WOS研究方向	Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS类目	Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000468253000009
出版者	ELSEVIER SCI LTD
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/11911
专题	中国科学院国家授时中心
通讯作者	Yang, Xuhai; Zhou, Feng
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China 2.Chinese Acad Sci, Key Lab Precise Positioning & Timing Technol, Xian 710600, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Shandong Univ Sci & Technol, Inst Ocean Engn, Qingdao 266000, Shandong, Peoples R China 5.East China Normal Univ, 500 Dongchuan Rd, Shanghai 200241, Peoples R China 6.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ge, Yulong,Yang, Xuhai,Qin, WeiJin,et al. Mitigation of the multipath effect in BDS-based time transfer using a wave-absorbing shield[J]. ADVANCES IN SPACE RESEARCH,2019,63(9):2771-2783.
APA	Ge, Yulong.,Yang, Xuhai.,Qin, WeiJin.,Yang, Haiyan.,Guang, Wei.,...&Wang, Shengli.(2019).Mitigation of the multipath effect in BDS-based time transfer using a wave-absorbing shield.ADVANCES IN SPACE RESEARCH,63(9),2771-2783.
MLA	Ge, Yulong,et al."Mitigation of the multipath effect in BDS-based time transfer using a wave-absorbing shield".ADVANCES IN SPACE RESEARCH 63.9(2019):2771-2783.