BDGIM performance evaluation based on iGMAS global tracking network

doi:10.1016/j.asr.2020.07.037

NTSC-IR

	BDGIM performance evaluation based on iGMAS global tracking network
	Zhao, Kunjuan 1,2; Yan, Wenhe 1,2,3; Yang, Xuhai 1,2,3; Yang, Haiyan 1,2,3; Wei, Pei 1,2,3
	2020-11-01
发表期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
卷号	66 期号:9 页码:2168-2178
摘要	The third phase BeiDou Navigation Satellite System (BDS-3) provides a BeiDou Global broadcast Ionospheric delay correction Model (BDGIM) for single-frequency navigation and positioning applications. According to the BDS Interface Control Document (ICD) Signal B1C (Version 1.0), the BDGIM contains nine parameters and was broadcast in December 2018. The BDGIM will gradually replace the BDS-2 ionospheric 8-parameter Klobuchar model (BDSKlob). A preliminary evaluation of the BDGIM was conducted using data collected at multiple stations across the international GNSS Monitoring and Assessment System (iGMAS) global tracking network. The high-precision global grid ionospheric delay sequences obtained from the Center of Orbit Determination in Europe (CODE) were selected as references to evaluate the BDGIM performance worldwide. The synthetic analysis and comparison results show that the BDGIM provides the best global description of the ionosphere and improves the nocturnal performance of the Klobuchar model and its sharp increase in the Polar Regions. The VTEC (Vertical Total Electron Content) calculated by the BDGIM exhibited the smallest RMS (Root Mean Square) values, the highest precision, and better performance for most northern hemisphere latitudes. BDGIM RMS values for most world regions were generally less than 5 TECU (Total Electron Content Unit), and its ionospheric delay correction rate reached nearly 80%. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved.
关键词	BDS-3 BDGIM Klobuchar model iGMAS Single-frequency ionosphere
资助者	"Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences
DOI	10.1016/j.asr.2020.07.037
关键词[WOS]	IONOSPHERIC MODELS
语种	英语
资助项目	"Western light" project of the Chinese Academy of Sciences[XAB2017B11] ; National Natural Science Foundation of China[41604026] ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences[Y917SC1S08]
资助者	"Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; "Western light" project of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences ; Youth Innovative Talents Project 2019 of National Time Service Center, Chinese Academy of Sciences
WOS研究方向	Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS类目	Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000573147800007
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/361003/12059
专题	中国科学院国家授时中心
通讯作者	Zhao, Kunjuan
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Precise Positioning & Timing Technol, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Kunjuan,Yan, Wenhe,Yang, Xuhai,et al. BDGIM performance evaluation based on iGMAS global tracking network[J]. ADVANCES IN SPACE RESEARCH,2020,66(9):2168-2178.
APA	Zhao, Kunjuan,Yan, Wenhe,Yang, Xuhai,Yang, Haiyan,&Wei, Pei.(2020).BDGIM performance evaluation based on iGMAS global tracking network.ADVANCES IN SPACE RESEARCH,66(9),2168-2178.
MLA	Zhao, Kunjuan,et al."BDGIM performance evaluation based on iGMAS global tracking network".ADVANCES IN SPACE RESEARCH 66.9(2020):2168-2178.