GPS, BDS and Galileo ionospheric correction models: An evaluation in range delay and position domain

doi:10.1016/j.jastp.2018.02.014

CORC > 武汉植物园 > 中国科学院武汉植物园

	GPS, BDS and Galileo ionospheric correction models: An evaluation in range delay and position domain
	Wang, Ningbo 1,2; Li, Zishen 1; Li, Min 2; Yuan, Yunbin 2; Huo, Xingliang 2
刊名	JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
	2018-05-01
卷号	170 页码:83-91
关键词	Global navigation satellite system (GNSS) Broadcast ionosphere models Klobuchar NeQuick Galileo (NeQuickG)
ISSN号	1364-6826
DOI	10.1016/j.jastp.2018.02.014
英文摘要	The performance of GPS Klobuchar (GPSKIob), BDS Klobuchar (BDSKlob) and NeQuick Galileo (NeQuickG) ionospheric correction models are evaluated in the range delay and position domains over China. The post processed Klobuchar-style (CODKlob) coefficients provided by the Center for Orbit Determination in Europe (CODE) and our own fitted NeQuick coefficients (NeQuickC) are also included for comparison. In the range delay domain, BDS total electrons contents (TEC) derived from 20 international GNSS Monitoring and Assessment System (iGMAS) stations and GPS TEC obtained from 35 Crust Movement Observation Network of China (CMONC) stations are used as references. Compared to BDS TEC during the short period (doy 010-020, 2015), GPSKlob, BDSKIob and NeQuickG can correct 58.4, 66.7 and 54.7% of the ionospheric delay. Compared to GPS TEC for the long period (doy 001-180, 2015), the three ionospheric models can mitigate the ionospheric delay by 64.8, 65.4 and 68.1%, respectively. For the two comparison cases, CODKlob shows the worst performance, which only reduces 57.9% of the ionospheric range errors. NeQuickC exhibits the best performance, which outperforms GPSKIob, BDSKIob and NeQuickG by 6.7, 2.1 and 6.9%, respectively. In the position domain, single-frequency stand point positioning (SPP) was conducted at the selected 35 CMONC sites using GPS C/A pseudorange with and without ionospheric corrections. The vertical position error of the uncorrected case drops significantly from 10.3 m to 4.8, 4.6, 4.4 and 4.2 m for GPSKIob, CODKlob, BDSKlob and NeQuickG, however, the horizontal position error (3.2) merely decreases to 3.1, 2.7, 2.4 and 2.3 m, respectively. NeQuickG outperforms GPSKIob and BDSKlob by 5.8 and 1.9% in vertical component, and by 25.0 and 3.2% in horizontal component.
资助项目	National Natural Science Foundation of China[4167040608] ; National Natural Science Foundation of China[4170040615] ; State Key Laboratory of Geodesy and Earth's Dynamics[SKLGED2017-3-1-EZ] ; Sino-German (CSC-DAAD) Postdoc Scholarship Program
WOS研究方向	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000428832100009
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/4958]
专题	中国科学院武汉植物园
通讯作者	Wang, Ningbo; Li, Zishen
作者单位	1.Chinese Acad Sci, Acad Optoelect, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Gelodesy & Earths Dynam, Wuhan, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ningbo,Li, Zishen,Li, Min,et al. GPS, BDS and Galileo ionospheric correction models: An evaluation in range delay and position domain[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2018,170:83-91.
APA	Wang, Ningbo,Li, Zishen,Li, Min,Yuan, Yunbin,&Huo, Xingliang.(2018).GPS, BDS and Galileo ionospheric correction models: An evaluation in range delay and position domain.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,170,83-91.
MLA	Wang, Ningbo,et al."GPS, BDS and Galileo ionospheric correction models: An evaluation in range delay and position domain".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 170(2018):83-91.