Research on Evaluation Method of Time Transfer Performance Between Ground Stations in Two-Way Satellite Comparison Network

doi:10.1109/ACCESS.2021.3050749

	Research on Evaluation Method of Time Transfer Performance Between Ground Stations in Two-Way Satellite Comparison Network
	Wang, Wei 2,3,4; Yang, Xuhai 2,3,4; Li, Weichao 2,4; Ge, Yulong 2,3,4; Chen, Liang 2,4; Cao, Fen 2,4; Wei, Pei 2,3,4; Liu, Peng 1; Li, Zhigang 2,4
刊名	IEEE ACCESS
	2021
卷号	9 页码:14038-14047
关键词	Satellites Delays Synchronization Modems Mathematical model Orbits Licenses Equipment delay PPP triangular closure difference TWSTFT
ISSN号	2169-3536
DOI	10.1109/ACCESS.2021.3050749
英文摘要	High-precision time synchronization between ground stations is essential for the precise measurement and determination of satellite orbits. Among the numerous time synchronization methods available, two-way satellite time and frequency transfer (TWSTFT) technology is widely used because of the approximate symmetry of its signal transmission path, such that most of the error terms can be offset to obtain subnanosecond time transmission accuracy. A C-band two-way satellite comparison network has been constructed at National Time Service Center (NTSC), Chinese Academy of Sciences for orbit determination and to compare the times between ground stations. The gradual increase in the number of ground stations has created a problem in need of urgent resolution: the facile and rapid evaluation of the time transfer performance between ground stations by a two-way satellite comparison network without the use of additional equipment. We solve this problem by applying the TWSTFT triangle closure method and the precise point positioning time transfer method to the NTSC two-way satellite comparison network and conduct joint observations between terrestrial stations to evaluate the network time transfer performance. We select the Xi'an, Kashi and Sanya stations of the NTSC two-way satellite comparison network to carry out verification tests. The results show that the NTSC two-way satellite comparison network can achieve subnanosecond time synchronization accuracy. The accuracy of time synchronization between stations can be checked conveniently and quickly without the use of additional equipment. This study presents the most recent developments for the NTSC two-way satellite comparison network and serves as a reference for evaluating the time transfer performance of similar networks.
资助项目	CAS "Light of West China'' Program[XAB2018YDYL01] ; National Natural Science Foundation of China[12073034]
WOS研究方向	Computer Science ; Engineering ; Telecommunications
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000613236100001
资助机构	CAS "Light of West China'' Program ; CAS "Light of West China'' Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS "Light of West China'' Program ; CAS "Light of West China'' Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS "Light of West China'' Program ; CAS "Light of West China'' Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS "Light of West China'' Program ; CAS "Light of West China'' Program ; 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/361003/12130]
专题	中国科学院国家授时中心
通讯作者	Yang, Xuhai
作者单位	1.China Elect Technol Grp Corp, 39th Res Inst, Xian 710600, Peoples R China 2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Precis Positioning & Timing Technol, Xian 710600, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wei,Yang, Xuhai,Li, Weichao,et al. Research on Evaluation Method of Time Transfer Performance Between Ground Stations in Two-Way Satellite Comparison Network[J]. IEEE ACCESS,2021,9:14038-14047.
APA	Wang, Wei.,Yang, Xuhai.,Li, Weichao.,Ge, Yulong.,Chen, Liang.,...&Li, Zhigang.(2021).Research on Evaluation Method of Time Transfer Performance Between Ground Stations in Two-Way Satellite Comparison Network.IEEE ACCESS,9,14038-14047.
MLA	Wang, Wei,et al."Research on Evaluation Method of Time Transfer Performance Between Ground Stations in Two-Way Satellite Comparison Network".IEEE ACCESS 9(2021):14038-14047.