Investigation of real-time kinematic multi-GNSS precise point positioning with the CNES products

doi:10.1016/j.measurement.2020.108231

	Investigation of real-time kinematic multi-GNSS precise point positioning with the CNES products
	Zhao, Xingwang 1,2,3; Ge, Yulong 4; Ke, Fuyang 5; Liu, Chao 1,2; Li, Fangchao 3,6
刊名	MEASUREMENT
	2020-12-15
卷号	166 页码:12
关键词	Multi-GNSS Real-time kinematic precise point positioning Convergence speed Positioning accuracy CNES products Triple-frequency
ISSN号	0263-2241
DOI	10.1016/j.measurement.2020.108231
英文摘要	The performance of precise point positioning (PPP) is easily affected by the observation environment, satellite number, spatial geometry and the accuracy of the external data products being used. In this study, we formulate the mathematical model of multi-GNSS PPP and assess the performance of dual-and triple-frequency PPP modes using the real-time products from the Centre National d'Etudes Spatiales (CNES). For real-time dual-frequency PPP performance, the results show that, no significant differences can be observed from different combined PPP modes at a low cut-off angle (e.g. 10 degrees). With the increase of the elevation cut-off angle, the multi-GNSS PPP shows a better performance in the convergence speed and positioning accuracy, especially in the early stage of convergence. Of all six PPP modes, the convergence time of GPS/BDS/GLONASS/GALILEO PPP is the shortest one under the elevation cut-off angle of 30 degrees. Compared with GPS-only, the convergence time is reduced by 47.6% when converging to 0.2 m, and by 30.4% when converging to 0.1 m. For the position accuracy, under the elevation cut-off angle of 30 degrees, 80.4% of positioning biases are within 0-10 cm in horizontal direction, and 91.0% within 0-20 cm in vertical direction for the GPS/BDS/GLONASS/GALILEO combined PPP. In addition, the convergence performance of triple-frequency PPP is improved by at least 36.4% in two schemes compared with dual-frequency PPP. The accuracy also be improved, with a mean RMS of about 2.9, 3.2 and 6.0 cm in East, North and Up directions. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41704008] ; National Natural Science Foundation of China[41674036]
WOS关键词	GPS ; GLONASS ; MODEL ; BEIDOU
WOS研究方向	Engineering ; Instruments & Instrumentation
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000577288400053
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/12073]
专题	中国科学院国家授时中心
通讯作者	Zhao, Xingwang
作者单位	1.Anhui Univ Sci & Technol, Sch Geodesy & Geomat, 168 Taifeng St, Huainan 232001, Peoples R China 2.Key Lab Aviat Aerosp Ground Cooperat Monitoring &, 168 Taifeng St, Huainan 232001, Peoples R China 3.Univ Nottingham, Nottingham Geospatial Inst, Triumph Rd, Nottingham NG7 2TU, England 4.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 5.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Peoples R China 6.China Univ Min & Technol, Sch Environm Sci & Spatial Informat, Xuzhou 221116, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xingwang,Ge, Yulong,Ke, Fuyang,et al. Investigation of real-time kinematic multi-GNSS precise point positioning with the CNES products[J]. MEASUREMENT,2020,166:12.
APA	Zhao, Xingwang,Ge, Yulong,Ke, Fuyang,Liu, Chao,&Li, Fangchao.(2020).Investigation of real-time kinematic multi-GNSS precise point positioning with the CNES products.MEASUREMENT,166,12.
MLA	Zhao, Xingwang,et al."Investigation of real-time kinematic multi-GNSS precise point positioning with the CNES products".MEASUREMENT 166(2020):12.