Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications

Analysis of Two-way Time Synchronization Error Caused by Satellite Motion

Authors
Wei Li, Xiang Wang, Huijie Song, Jihai Zhang
Corresponding Author
Wei Li
Available Online November 2015.
DOI
10.2991/icmmita-15.2015.203How to use a DOI?
Keywords
TWSTFT; path symmetry; satellite motion; time synchronization error
Abstract

In a navigation satellite system, the two-way satellite time and frequency transfer (TWSTFT) is mainly used for time synchronization at earth stations, and system time tracing, etc. The reason why the TWSTFT can realize high-precision time synchronization is its path symmetry; however, in practical applications, satellite motion leads to a deviation from the distance between base station and satellite and a time synchronization error between two base stations, which affect the path symmetry of the TWSTFT and further influence the precision of two-way satellite time synchronization. In this paper, the calculation method of the two-way time synchronization error caused by satellite motion was studied, and the influence of satellite motion on the precision of two-way time synchronization was analyzed for three base stations, i.e., Sanya, Chengdu and Kashi, selected at low, medium and high latitudes, respectively, with Beijing station as a reference station, using the orbital data of different satellites on one day. In the two-way time synchronization technology research for and construction of the BeiDou Navigation Satellite System, if geosynchronous earth orbit (GEO) satellites are used for two-way time transfer with precision of 1 ns, the influence of satellite motion can be neglected; however, if it is expected to realize time comparison with higher precision or to use satellites with faster motion velocity, the research results from this paper will have important reference function.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

Volume Title
Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications
Series
Advances in Computer Science Research
Publication Date
November 2015
ISBN
978-94-6252-120-9
ISSN
2352-538X
DOI
10.2991/icmmita-15.2015.203How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Wei Li
AU  - Xiang Wang
AU  - Huijie Song
AU  - Jihai Zhang
PY  - 2015/11
DA  - 2015/11
TI  - Analysis of Two-way Time Synchronization Error Caused by Satellite Motion
BT  - Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications
PB  - Atlantis Press
SP  - 1103
EP  - 1109
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmita-15.2015.203
DO  - 10.2991/icmmita-15.2015.203
ID  - Li2015/11
ER  -