Analysis of Two-Way satellite time and frequency transfer with C-band

CORC > 国家授时中心 > 中国科学院国家授时中心 > 高精度时间传递与精密测定轨研究室

	Analysis of Two-Way satellite time and frequency transfer with C-band
	Yang Xuhai ; Li Zhigang ; Hua Aihui
	2007
会议名称	Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum
会议日期	MAY 29-JUN 01, 2007
会议地点	Geneva, SWITZERLAND
英文摘要	Two-Way Satellite Time and Frequency Transfer (TWSTFT) with C-band is influenced more seriously by ionosphere delay than that with Ku-band. The TWSTFT link between Xi'an and Urumchi with C-band has been established and it works via SINOSAT-1 geostationary satellite at 110.5 degrees E with the uplink frequency 6.3 GHz and downlink frequency 4.1 GHz. To study and evaluate the instability introduced by ionosphere delay in the TWSTFT link with C-band, we calculated the influence of ionosphere delay based on global TEC map in 2006 provided by the International GNSS Services (IGS). First, we build a sphere harmonious model based on IGS TEC data file, so that we can easily obtain the TEC at any penetration point on the sphere 450 km above the earth surface at any time. Then, we calculate the two penetration point positions with the coordinates of two stations and the nominal coordinate of the satellite. After that, the uplink and downlink ionosphere delay of each station are calculated, and the influence to TWSTFT is also obtained. The result shows that the non-reciprocity introduced by ionosphere delay in the TWSTFT link with C-band varies day by day, and the maximum amplitude of the daily variation is 0.38 ns in 2006.
收录类别	CPCI
产权排序	1
会议主办者	IEEE
会议录	PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM-JOINTLY WITH THE 21ST EUROPEAN FREQUENCY AND TIME FORUM, VOLS 1-4
语种	英语
ISBN号	978-1-4244-0646-3
内容类型	会议论文
源URL	[http://210.72.145.45/handle/361003/5290]
专题	国家授时中心_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	Yang Xuhai,Li Zhigang,Hua Aihui. Analysis of Two-Way satellite time and frequency transfer with C-band[C]. 见:Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum. Geneva, SWITZERLAND. MAY 29-JUN 01, 2007.