GNSS time offset monitoring based on the single difference among systems

doi:10.1049/iet-rsn.2019.0387

	GNSS time offset monitoring based on the single difference among systems
	Tu, Rui 1,2,3; Zhang, Pengfei 2,3; Zhang, Rui 2,3; Fan, Lihong 1,3; Liu, Jinhai 1,3; Lu, Xiaochun 1,2,3
刊名	IET RADAR SONAR AND NAVIGATION
	2020-02-01
卷号	14 期号:2 页码:299-302
关键词	delays satellite navigation radio receivers Global Positioning System GNSS time single difference time offset monitoring multiple Global Navigation Satellite Systems compatibility interoperability conventional signal space approaches single-point positioning SPP precise point positioning single-difference point positioning SDPP receiver clock parameter common model errors estimated time smooth estimation time offset estimation different stations system biases
ISSN号	1751-8784
DOI	10.1049/iet-rsn.2019.0387
英文摘要	Time offset monitoring of multiple Global Navigation Satellite Systems is important for compatibility and interoperability. Unlike conventional signal space approaches, such as single-point positioning (SPP) and precise point positioning, an approach based on the principle of single difference among systems, single-difference point positioning (SDPP), is proposed to omit the receiver clock parameter and reduce the influence of the common model errors during estimation. The proposed approach was validated on different datasets, and results shown that the estimated time offset among systems using SDPP has no significant difference with that using SPP. Moreover, SDPP retrieves the best time offset estimation when considering it as a random walk process, as it provides smooth estimation with low noise. Furthermore, considering constraints from station coordinates and tropospheric delay further improves time offset estimation. The time offset estimation over time remains within a reasonable range, exhibits some periodicity, and estimation from different stations is consistent if disregarding system biases. In addition, the estimated time offset can be used to improve the SPP accuracy.
资助项目	National Key Research and Development Plan of China[2016YFB0501804] ; National Natural Science Foundation of China[41674034] ; National Natural Science Foundation of China[4197040339] ; Chinese Academy of Sciences (CAS)[Y620YC1701] ; Chinese Academy of Sciences (CAS)[Y507YR1203] ; Chinese Academy of Sciences (CAS)[QYZDB-SSW-DQC028]
WOS关键词	PRECISE ; BIASES
WOS研究方向	Engineering ; Telecommunications
语种	英语
出版者	INST ENGINEERING TECHNOLOGY-IET
WOS记录号	WOS:000515803200014
资助机构	National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS)
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/9519]
专题	国家授时中心_导航与通信研究室
通讯作者	Tu, Rui
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Precis Nav Positioning & Timing Technol, Xian 710600, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Tu, Rui,Zhang, Pengfei,Zhang, Rui,et al. GNSS time offset monitoring based on the single difference among systems[J]. IET RADAR SONAR AND NAVIGATION,2020,14(2):299-302.
APA	Tu, Rui,Zhang, Pengfei,Zhang, Rui,Fan, Lihong,Liu, Jinhai,&Lu, Xiaochun.(2020).GNSS time offset monitoring based on the single difference among systems.IET RADAR SONAR AND NAVIGATION,14(2),299-302.
MLA	Tu, Rui,et al."GNSS time offset monitoring based on the single difference among systems".IET RADAR SONAR AND NAVIGATION 14.2(2020):299-302.