Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance

doi:10.3390/s19112496

NTSC-IR

	Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance
	Jiao, Guoqiang 1,2; Song, Shuli 1; Ge, Yulong 2,3; Su, Ke 1,2; Liu, Yangyang 2,3
	2019-06-01
发表期刊	SENSORS
ISSN	1424-8220
卷号	19 期号:11 页码:20
摘要	With the launch of BDS-3 and Galileo new satellites, the BeiDou navigation satellite system (BDS) has developed from the regional to global system, and the Galileo constellation will consist of 26 satellites in space. Thus, BDS, GPS, GLONASS, and Galileo all have the capability of global positioning services. It is meaningful to evaluate the ability of global precise point positioning (PPP) of the GPS, BDS, GLONASS, and Galileo. This paper mainly contributes to the assessment of BDS-2, BDS-2/BDS-3, GPS, GLONASS, and Galileo PPP with the observations that were provided by the international Global Navigation Satellite System (GNSS) Monitoring and Assessment System (iGMAS). The Position Dilution of Precision (PDOP) value was utilized to research the global coverage of GPS, BDS-2, BDS-2/BDS-3, GLONASS, and Galileo. In particular, GPS-only, BDS-2-only, BDS-2/BDS-3, GLONASS-only, Galileo-only, and multi-GNSS combined PPP solutions were analyzed to verify the capacity of the PPP performances in terms of positioning accuracy, convergence time, and zenith troposphere delay (ZTD) accuracy. In view of PDOP, the current BDS and Galileo are capable of global coverage. The BDS-2/BDS-3 and Galileo PDOP values are fairly evenly distributed around the world similar to GPS and GLONASS. The root mean square (RMS) of positioning errors for static BDS-2/BDS-3 PPP and Galileo-only PPP are 10.7, 19.5, 20.4 mm, and 6.9, 18.6, 19.6 mm, respectively, in the geographic area of the selected station, which is the same level as GPS and GLONASS. It is worth mentioning that, by adding BDS-3 observations, the positioning accuracy of static BDS PPP is improved by 17.05%, 24.42%, and 35.65%, and the convergence time is reduced by 27.15%, 27.87%, and 35.76% in three coordinate components, respectively. Similar to the static positioning, GPS, BDS-2/BDS-3, GLONASS, and Galileo have the basically same kinematic positioning accuracy. Multi-GNSS PPP significantly improves the positioning performances in both static and kinematic positioning. In terms of ZTD accuracy, the difference between GPS, BDS-2/BDS-3, GLONASS, and Galileo is less than 1 mm, and the BDS-2/BDS-3 improves ZTD accuracy by 20.48% over the BDS-2. The assessment of GPS, BDS-2, BDS-2/BDS-3, GLONASS, Galileo, and multi-GNSS global PPP performance are shown to make comments for the development of multi-GNSS integration, global precise positioning, and the construction of iGMAS.
关键词	BeiDou-3 international GNSS Monitoring and Assessment System (iGMAS) PDOP precise point positioning (PPP) positioning accuracy convergence time ZTD
资助者	National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
DOI	10.3390/s19112496
关键词[WOS]	WATER-VAPOR ; GLONASS ; GPS ; GENERATION ; SATELLITES ; PRODUCTS ; GALILEO ; ORBIT ; PPP ; IGS
语种	英语
资助项目	National Key R&D Program of China[2016YFB0501503-3]
资助者	National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS记录号	WOS:000472133300074
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/11941
专题	中国科学院国家授时中心
通讯作者	Song, Shuli
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Jiao, Guoqiang,Song, Shuli,Ge, Yulong,et al. Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance[J]. SENSORS,2019,19(11):20.
APA	Jiao, Guoqiang,Song, Shuli,Ge, Yulong,Su, Ke,&Liu, Yangyang.(2019).Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance.SENSORS,19(11),20.
MLA	Jiao, Guoqiang,et al."Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance".SENSORS 19.11(2019):20.