A new stochastic model considering satellite clock interpolation errors in precise point positioning

doi:10.1016/j.asr.2017.12.023

NTSC-IR

	A new stochastic model considering satellite clock interpolation errors in precise point positioning
	Wang, Shengli 1,2,3; Yang, Fanlin 1,2; Gao, Wang 4; Yan, Lizi 1,3; Ge, Yulong 5
	2018-03-01
发表期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
卷号	61 期号:5 页码:1332-1341
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.
关键词	Precise point positioning Atomic clock noise Interpolation error Stochastic model
资助者	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
DOI	10.1016/j.asr.2017.12.023
关键词[WOS]	INTERNATIONAL GNSS SERVICE ; GPS SERVICE ; IGS
语种	英语
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]
资助者	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
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:000425562200013
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/361003/11528
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.