Multiple GNSS inter-system biases in precise time transfer

doi:10.1088/1361-6501/ab32b3

NTSC-IR

	Multiple GNSS inter-system biases in precise time transfer
	Tu,Rui 1,2,3; Hong,Ju 1,3; Zhang,Pengfei 1,3; Zhang,Rui 1,2; Fan,Lihong 1,2; Liu,Jinhai 1,3; Lu,Xiaochun 1,2,3
	2019-09-03
发表期刊	Measurement Science and Technology
ISSN	0957-0233
卷号	30 期号:11
摘要	Abstract Inter-system bias (ISB) is important for the fusion of multiple global navigation satellite system data. They should be estimated or corrected for precise position, navigation, and timing solutions. In this study, ISB estimation models are developed for the global positioning system, GLONASS, BeiDou Navigation Satellite System, and Galileo systems. Six stations, with three different types of receivers, are used to analyze the ISB characteristics of different systems. A pair of time-link stations, which have a short baseline and are connected to a common external time frequency from the laboratory, are used to analyze the performance of three different estimation strategies (epoch-wise variable, 30?min piece-wise constant, and daily constant). These stations are also used to evaluate the influence of ISB constrains on the precise estimation of time transfer, coordinates, and the troposphere. The results illustrate: (a) ISBs variation exists between different systems, and the same types of receivers also exhibit large differences between the different stations due to the receiver hardware delay; (b) the precision of the different measurements and their related errors, the estimated ISBs that exhibit large differences between pseudorange and carrier phase observations, and the different ISB estimation strategies can also cause differences in the final fusion results; and (c) using the estimated ISB as constraints can improve the precise estimation of time transfer, coordinates, and the troposphere in the real-time solution mode.
关键词	global navigation satellite system inter-system biases precise time transfer real-time positioning
DOI	10.1088/1361-6501/ab32b3
语种	英语
WOS记录号	IOP:0957-0233-30-11-ab32b3
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/10757
专题	中国科学院国家授时中心
作者单位	1.National Time Service Center, Chinese Academy of Sciences, Shuyuan Road, 710600 Xi’an, People’s Republic of China 2.Key Laboratory of Precision Navigation Positioning and Timing Technology, Chinese Academy of Sciences, Shuyuan Road, 710600 Xi’an, People’s Republic of China 3.University of Chinese Academy of Sciences, Yuquan Road, 100049 Beijing, People’s Republic of China
推荐引用方式 GB/T 7714	Tu,Rui,Hong,Ju,Zhang,Pengfei,et al. Multiple GNSS inter-system biases in precise time transfer[J]. Measurement Science and Technology,2019,30(11).
APA	Tu,Rui.,Hong,Ju.,Zhang,Pengfei.,Zhang,Rui.,Fan,Lihong.,...&Lu,Xiaochun.(2019).Multiple GNSS inter-system biases in precise time transfer.Measurement Science and Technology,30(11).
MLA	Tu,Rui,et al."Multiple GNSS inter-system biases in precise time transfer".Measurement Science and Technology 30.11(2019).