Improvement of Multi-GNSS Precise Point Positioning Performances with Real Meteorological Data

doi:10.1017/S0373463318000462

CORC > 上海天文台 > 中国科学院上海天文台

	Improvement of Multi-GNSS Precise Point Positioning Performances with Real Meteorological Data
	Su, Ke 1,2; Jin, Shuanggen 1,3
刊名	JOURNAL OF NAVIGATION
	2018-11-01
卷号	71 期号:6 页码:1363-1380
关键词	Gnss Ppp Tropospheric Delay Meteorology
ISSN号	0373-4633
DOI	10.1017/S0373463318000462
英文摘要	Tropospheric delay is one of the main error sources in Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP). Zenith Hydrostatic Delay (ZHD) accounts for 90% of the total delay. This research focuses on the improvements of ZHD from tropospheric models and real meteorological data on the PPP solution. Multi-GNSS PPP experiments are conducted using the datasets collected at Multi-GNSS Experiments (MGEX) network stations. The results show that the positioning accuracy of different GNSS PPP solutions using the meteorological data for ZHD correction can achieve an accuracy level of several millimetres. The average convergence time of a PPP solution for the BeiDou System (BDS), the Global Positioning System (GPS), Global Navigation Satellite System of Russia (GLONASS), BDS+GPS, and BDS+GPS+GLONASS+Galileo are 55.89 min, 25.88 min, 33.30 min, 20.50 min and 15.71 min, respectively. The results also show that atmospheric parameters provided by real meteorological data have little effect on the horizontal components of positioning compared to the meteorological model, while in the vertical component, the positioning accuracy is improved by 90.6%, 33.0%, 22.2% and 19.8% compared with the standard atmospheric model, University of New Brunswick (UNB3m) model, Global Pressure and Temperature (GPT) model, and Global Pressure and Temperature-2 (GPT2) model and the convergence times are decreased 51.2%, 32.8%, 32.5%, and 32.3%, respectively.
WOS研究方向	Engineering ; Oceanography
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000447492700006
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/32227]
专题	中国科学院上海天文台
通讯作者	Jin, Shuanggen
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai Key Lab Space Nav & Positioning Technol, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Su, Ke,Jin, Shuanggen. Improvement of Multi-GNSS Precise Point Positioning Performances with Real Meteorological Data[J]. JOURNAL OF NAVIGATION,2018,71(6):1363-1380.
APA	Su, Ke,&Jin, Shuanggen.(2018).Improvement of Multi-GNSS Precise Point Positioning Performances with Real Meteorological Data.JOURNAL OF NAVIGATION,71(6),1363-1380.
MLA	Su, Ke,et al."Improvement of Multi-GNSS Precise Point Positioning Performances with Real Meteorological Data".JOURNAL OF NAVIGATION 71.6(2018):1363-1380.