Mitigation of the multipath effect in BDS-based time transfer using a wave-absorbing shield
文献类型：期刊论文
| 作者 | Ge, Yulong1,2,3; Yang, Xuhai1,2,6; Qin, WeiJin1,2; Yang, Haiyan1,2; Guang, Wei1,2; Zhou, Feng5; Ouyang, Mingjun1,2,3; Wang, Shengli4 |
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 63期号:9页码:2771-2783 |
| 关键词 | BDS Time transfer Pseudorange multipath mitigation Wave-absorbing shield |
| ISSN号 | 0273-1177 |
| DOI | 10.1016/j.asr.2018.05.008 |
| 英文摘要 | 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. |
| WOS关键词 | GPS ; PHASE |
| 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 |
| WOS研究方向 | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000468253000009 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | 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 |
| 源URL | [http://210.72.145.45/handle/361003/11910]  |
| 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. |
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来源：国家授时中心
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