Analysis on the time transfer performance of BDS-3 signals

doi:10.1088/1681-7575/abbcc1

NTSC-IR > 时间频率基准实验室

	Analysis on the time transfer performance of BDS-3 signals
	Guang,Wei 1,2; Zhang,Jihai 1,3; Yuan,Haibo 1,2,3; Wu,Wenjun 1,2; Dong,Shaowu 1,2,3,4
	2020-10-28
发表期刊	Metrologia
ISSN	0026-1394
卷号	57 期号:6
摘要	AbstractThe BeiDou global navigation satellite system (BDS-3) was formally commissioned to provide positioning, velocity, and timing services to global users on 31 July 2020. We analyzed its pseudorange measurement noise, the precision of conventional common view (CV) and all-in-view (AV) time comparison, and the instability of the precise point positioning (PPP) time transfer to assess the time transfer performance of BDS-3. We found that the elevation-dependent biases found in BDS-2 code measurements are mitigated in BDS-3. The time transfer performance of the BDS-3 satellites is over 50% higher than that of the BDS-2 satellites. In terms of the CV time comparison, the standard deviations of the zero-baseline common clock time comparison of the new BDS-3 signal combination of B1C and B2a reach 0.36 ns, which are the same levels for Galileo E1 and E5a and the global positioning system (GPS) L1 and L2. In the long baseline AV comparison links over 7000 km, the standard deviation of the time comparison of the B1C and B2a combination also reaches 0.8 ns, and the improved gain is 55% relative to that of the BDS-2 B1I and B2I. We also tested the PPP time transfer performance with BDS-2 and BDS-3 satellites and found that the time transfer performance of BDS B1I and B3I is comparable to that of GPS L1 and L2.
关键词	BDS time transfer BDS-3 common view BDS-3 all-in-view BDS-3 PPP
DOI	10.1088/1681-7575/abbcc1
语种	英语
WOS记录号	IOP:0026-1394-57-6-abbcc1
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/361003/9864
专题	时间频率基准实验室
通讯作者	Guang,Wei; Yuan,Haibo
作者单位	1.National Time Service Center, Chinese Academy of Sciences(NTSC), Xi’an 710600, People’s Republic of China 2.Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences, Xi’an 710600, People’s Republic of China 3.University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China 4.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
推荐引用方式 GB/T 7714	Guang,Wei,Zhang,Jihai,Yuan,Haibo,et al. Analysis on the time transfer performance of BDS-3 signals[J]. Metrologia,2020,57(6).
APA	Guang,Wei,Zhang,Jihai,Yuan,Haibo,Wu,Wenjun,&Dong,Shaowu.(2020).Analysis on the time transfer performance of BDS-3 signals.Metrologia,57(6).
MLA	Guang,Wei,et al."Analysis on the time transfer performance of BDS-3 signals".Metrologia 57.6(2020).