Positioning bias of different frequency observations in double-differenced relative positioning
文献类型：期刊论文
| 作者 | Liu, Jinhai1,3; Tu, Rui1,2,3; Zhang, Rui2,3; Han, Junqiang2,3; Fan, Lihong2,3; Lu, Xiaochun1,2,3 |
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2020-09-15 |
| 卷号 | 66期号:6页码:1321-1328 |
| 关键词 | BDS GPS RTK Double-differenced Inter-frequency bias Relative positioning CDMA |
| ISSN号 | 0273-1177 |
| DOI | 10.1016/j.asr.2020.05.020 |
| 英文摘要 | In this study, the double-differenced positioning bias of different frequency observations (PBDFO) in a code division multiple access (CDMA) signal system is analyzed based on real-time kinematic (RTK) positioning using raw observations at different frequencies. To test and verify the existence of the DD PBDFO, a set of ultra-short baseline (25 m) GNSS observation data were collected. The stations NT03 and NT04 were located in Xi'an City, Shaanxi Province. The observation time ranged from UTC 11:00 to 17:00 for 10 consecutive days from DOY 012 to DOY 021 in 2017. The results showed that there are mm-cm differences in the RTK solution results for the raw observations at different frequencies, the mean bias and the standard deviation (STD) of the positioning results of GPS L1 and L2 in the East, North, and Up components are (-0.595 mm, 1.35 mm, -0.133 mm) and (3.11 mm, 3.32 mm, 6.44 mm), respectively, but for BDS B1 and B2, the corresponding values are (2.16 mm, -4.24 mm, 9.48 mm) and (3.35 mm, 4.85 mm, 7.41 mm), respectively. The PBDFO between GPS L1 and L2 frequencies is lower in magnitude and more stable than the PBDFO between BDS B1 and B2 frequencies, the mean and the STD of the PBDFO between GPS L1 and L2 obtained from the parameter estimation method in the East, North, and Up components are (-0.606 mm, 1.03 mm, -0.217 mm) and (0.162 mm, 0.169 mm, 0.276 mm), respectively; but for BDS B1 and B2, the corresponding values are (3.00 mm, -3.83 mm, 8.59 mm) and (0.375 mm, 1.14 mm, 2.47 mm), respectively. Both PBDFO correction model and parameter estimation approach can achieve consistency in terms of the RTK positioning results at different frequencies. The double-differenced (DD) PBDFO obtained from the direct difference method and parameter estimation approach are consistent and relatively stable for the same period of continuous days. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | GPS ; PERFORMANCE ; BEIDOU ; BDS ; SIGNAL ; PPP |
| 资助项目 | National Natural Science Foundation of China[41674034] ; National Natural Science Foundation of China[41974032] ; National Natural Science Foundation of China[11903040] ; National Key Research and Development Plan of China[2016YFB0501804] ; Chinese Academy of Science (CAS)[Y923YC1701] ; Chinese Academy of Science (CAS)[QYZDB-SSW-DQC028] |
| WOS研究方向 | Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000554926500006 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) |
| 源URL | [http://210.72.145.45/handle/361003/9183]  |
| 专题 | 国家授时中心_导航与通信研究室 |
| 通讯作者 | Tu, Rui |
| 作者单位 | 1.Univ Chinese Acad Sci, Yu Quan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Precis Nav Positioning & Timing Technol, Xian 710600, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Shu Yuan Rd, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jinhai,Tu, Rui,Zhang, Rui,et al. Positioning bias of different frequency observations in double-differenced relative positioning[J]. ADVANCES IN SPACE RESEARCH,2020,66(6):1321-1328. |
| APA | Liu, Jinhai,Tu, Rui,Zhang, Rui,Han, Junqiang,Fan, Lihong,&Lu, Xiaochun.(2020).Positioning bias of different frequency observations in double-differenced relative positioning.ADVANCES IN SPACE RESEARCH,66(6),1321-1328. |
| MLA | Liu, Jinhai,et al."Positioning bias of different frequency observations in double-differenced relative positioning".ADVANCES IN SPACE RESEARCH 66.6(2020):1321-1328. |
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来源：国家授时中心
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