A new stochastic model considering satellite clock interpolation errors in precise point positioning
文献类型：期刊论文
| 作者 | Wang, Shengli1,2,3; Yang, Fanlin1,2; Gao, Wang4; Yan, Lizi1,3; Ge, Yulong5 |
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 61期号:5页码:1332-1341 |
| 关键词 | Precise point positioning Atomic clock noise Interpolation error Stochastic model |
| ISSN号 | 0273-1177 |
| DOI | 10.1016/j.asr.2017.12.023 |
| 英文摘要 | Precise clock products are typically interpolated based on the sampling interval of the observational data when they are used for in precise point positioning. However, due to the occurrence of white noise in atomic clocks, a residual component of such noise will inevitable reside within the observations when clock errors are interpolated, and such noise will affect the resolution of the positioning results. In this paper, which is based on a twenty-one-week analysis of the atomic clock noise characteristics of numerous satellites, a new stochastic observation model that considers satellite clock interpolation errors is proposed. First, the systematic error of each satellite in the IGR clock product was extracted using a wavelet de-noising method to obtain the empirical characteristics of atomic clock noise within each clock product. Then, based on those empirical characteristics, a stochastic observation model was structured that considered the satellite clock interpolation errors. Subsequently, the IGR and IGS clock products at different time intervals were used for experimental validation. A verification using 179 stations worldwide from the IGS showed that, compared with the conventional model, the convergence times using the stochastic model proposed in this study were respectively shortened by 4.8% and 4.0% when the IGR and IGS 300-s-interval clock products were used and by 19.1% and 19.4% when the 900-s-interval clock products were used. Furthermore, the disturbances during the initial phase of the calculation were also effectively improved. (C) 2017 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | INTERNATIONAL GNSS SERVICE ; GPS SERVICE ; IGS |
| 资助项目 | Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents[22016RCJJ014] ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation[2014B02] |
| WOS研究方向 | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000425562200013 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation ; Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation ; Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation ; Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Scientific Research Foundation of the Shandong University of Science and Technology for Recruited Technology for Recruited Talents ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation ; Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinformation |
| 源URL | [http://210.72.145.45/handle/361003/11527]  |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Yang, Fanlin |
| 作者单位 | 1.Natl Adm Surveying Mapping & Geoinformat, Key Lab Surveying & Mapping Technol Isl & Reef, Qingdao 266590, Peoples R China 2.Shandong Univ Sci & Technol, Coll Geomat, Qingdao 266590, Peoples R China 3.Shandong Univ Sci & Technol, Inst Ocean Engn, Qingdao 266590, Peoples R China 4.Southeast Univ, Sch Transportat, Nanjing 210096, Jiangsu, Peoples R China 5.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shengli,Yang, Fanlin,Gao, Wang,et al. A new stochastic model considering satellite clock interpolation errors in precise point positioning[J]. ADVANCES IN SPACE RESEARCH,2018,61(5):1332-1341. |
| APA | Wang, Shengli,Yang, Fanlin,Gao, Wang,Yan, Lizi,&Ge, Yulong.(2018).A new stochastic model considering satellite clock interpolation errors in precise point positioning.ADVANCES IN SPACE RESEARCH,61(5),1332-1341. |
| MLA | Wang, Shengli,et al."A new stochastic model considering satellite clock interpolation errors in precise point positioning".ADVANCES IN SPACE RESEARCH 61.5(2018):1332-1341. |
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来源：国家授时中心
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