Satellite Orbit Determination and Time Transfer Based on TWSTFT

	Satellite Orbit Determination and Time Transfer Based on TWSTFT
	Wu Wenjun; Li Zhigang; Yang Xuhai; Lei Hui; Chen Xuan; Feng Chugang
	2011
会议名称	5th Joint Conference of the 65th IEEE International Frequency Control Symposium/25th European Frequency and Time Forum
会议录名称	2011 JOINT CONFERENCE OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM/EUROPEAN FREQUENCY AND TIME FORUM PROCEEDINGS
会议日期	MAY 01-05, 2011
会议地点	San Fransisco, CA
ISSN	1075-6787
产权排序	1
ISBN	978-1-61284-110-6
摘要	Two-way satellite time and frequency transfer (TWSTFT) is one of the most precise and accurate long-distance time transfer techniques nowadays. A C band multi-station satellite tracking system is developed based on TWSTFT in China. This system can not only measure the distance between a satellite with transponders and earth stations, but also realize the time synchronization between all earth stations. The satellite orbit can be determined by the distances. Five earth stations have been constructed in China. The master station is placed at the National Time Service Center (NTSC) in Lintong. There are a very small antenna terminal (VSAT) of 3.7 meters, up/down converters, a modem and an atomic clock in each station. The up and down link frequencies are 6GHz and 4GHz. The spread spectrum signal generated by the modem is 20MHz chip rate. The transmitter power is less than 1W. The results show that the accuracy of ranging, orbit determination and time synchronization between all earth stations is about 1cm, 10cm and 0.1ns respectively.
部门归属	高精度时间传递与精密测定轨研究室
主办者	IEEE, IEEE UFFC, EFTF
收录类别	CPCI
语种	英语
文献类型	会议论文
条目标识符	http://210.72.145.45/handle/361003/5274
专题	高精度时间传递与精密测定轨研究室
推荐引用方式 GB/T 7714	Wu Wenjun,Li Zhigang,Yang Xuhai,et al. Satellite Orbit Determination and Time Transfer Based on TWSTFT[C],2011.

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