Characterization of biases between BDS-3 and BDS-2, GPS, Galileo and GLONASS observations and their effect on precise time and frequency transfer

doi:10.1088/1361-6501/abc963

	Characterization of biases between BDS-3 and BDS-2, GPS, Galileo and GLONASS observations and their effect on precise time and frequency transfer
	Zhang,Pengfei 1,2; Tu,Rui 1,3,4; Han,Junqiang 1; Gao,Yuping 1,2; Zhang,Rui 1,4; Lu,Xiaochun 1,4
刊名	Measurement Science and Technology
	2020-12-11
卷号	32 期号:3
关键词	BDS-3 ISB time and frequency transfer GNSS
ISSN号	0957-0233
DOI	10.1088/1361-6501/abc963
英文摘要	AbstractWith the development of the Chinese BeiDou Navigation Satellite System (BDS), from a regional system BDS-2 to a global system BDS-3, more satellites can now be employed in the domain of globally precise time and frequency transfer. However, if the current BDS-3 and BDS-2, Global Positioning System (GPS), Galileo and GLObal NAvigation satellite system (GLONASS) are combined for multi-global navigation satellite system (multi-GNSS) time transfer, the characteristics of inter-system biases (ISBs) remain unclear. In this study, we analyzed the characteristics of ISBs between BDS-3 and BDS-2, GPS, Galileo and GLONASS, and revealed that their ISB series is not constant and that all the daily ISB series of the multi-GNSS show some systematic characteristics among different stations. Therefore, three stochastic models for ISBs of white noise process, random constant process and random walk process expressed as ‘White’, ‘Hour’ and ‘Walk’, respectively, were employed to assess the performance of the time and frequency transfer using the time link accuracy and frequency stability indicators. The results show that the models for the ‘Hour’ and ‘Walk’ schemes are notably better than that for the ‘White’ scheme by 10.4% and 16.8%, respectively, for the least noisy time link of WTZZ-BRCH. Furthermore, the improvements in the ‘Hour’ and ‘Walk’ schemes are 2.1% and 3.5%, respectively, for the TP01-BRCH time link, when compared with that of the ‘White’ scheme. With respect to frequency stability, the ‘Hour’ and ‘Walk’ schemes also perform better in terms of frequency stability than the ‘White’ scheme at different time intervals. Similarly, the improvements over the ‘White’ scheme are 5.05% and 4.97% for the TP01-BRCH time link and are 24.01% and 32.48% for the WTZZ-BRCH time link.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0957-0233-32-3-ABC963
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/10780]
专题	中国科学院国家授时中心
通讯作者	Tu,Rui
作者单位	1.National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi’an 710600, People’s Republic of China 2.Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences, Shu Yuan Road, Xi’an 710600, People’s Republic of China 3.University of Chinese Academy of Sciences, Yu Quan Road, Beijing 100049, People’s Republic of China 4.Key Laboratory of Precision Navigation Positioning and Timing Technology, Chinese Academy of Sciences, Shu Yuan Road, Xi’an 710600, People’s Republic of China
推荐引用方式 GB/T 7714	Zhang,Pengfei,Tu,Rui,Han,Junqiang,et al. Characterization of biases between BDS-3 and BDS-2, GPS, Galileo and GLONASS observations and their effect on precise time and frequency transfer[J]. Measurement Science and Technology,2020,32(3).
APA	Zhang,Pengfei,Tu,Rui,Han,Junqiang,Gao,Yuping,Zhang,Rui,&Lu,Xiaochun.(2020).Characterization of biases between BDS-3 and BDS-2, GPS, Galileo and GLONASS observations and their effect on precise time and frequency transfer.Measurement Science and Technology,32(3).
MLA	Zhang,Pengfei,et al."Characterization of biases between BDS-3 and BDS-2, GPS, Galileo and GLONASS observations and their effect on precise time and frequency transfer".Measurement Science and Technology 32.3(2020).