Study on Converter Path delay vary with Temperature in TWSTFT

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	Study on Converter Path delay vary with Temperature in TWSTFT
	Zhang Hong; Li Huanxin
	2011
会议名称	7th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM)
会议录名称	2011 7TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING (WICOM)
会议日期	SEP 23-25, 2011
会议地点	Wuhan, PEOPLES R CHINA
产权排序	1
ISBN	978-1-4244-6252-0
摘要	Up and Down-converters are the very important equipments in the Two Way Satellite Time and Frequency Transfer (TWSTFT). Up-converter is the transmit equipment while the Down-converter belong to receive facility. They take the role of changing from middle frequency signal (70MHz) to high frequency (up link is 14GHz, down link is 12GHz). In order to improve the time transfer precise, we measure and calculate the path delay of converter vary with the temperature. In this text, we replaced the satellite transponder by the Loop translator. We controlled the temperature around of the up and down-converter and did a TW loop experiment which transmit and receive by oneself. The temperature recorder wrote down the temperature value while the time interval counter recorded the path delay. Analyzing the relation between the path delay and temperature value, we found the following result: from 6 to 13 centigrade degree, the time delay is stable. That means during this temperature period, the time delay do not float obviously. So to reduce the effects by temperature, the best choice is keeping the temperature condition in 6 to 13 centigrade degree range. In the text, we compare the performance of time transfer with 6 to 13 centigrade degree and with other terms temperature range.
部门归属	时间基准研究室
主办者	IEEE, Wuhan Univ, Huazhong Univ Sci & Technol, Commun Univ China, Jiangsu Univ, Engn Informat Inst, IEEE Antennas & Propagat Soc (APS), IEEE Wuhan Sect
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/361003/5340
专题	时间频率基准实验室
推荐引用方式 GB/T 7714	Zhang Hong,Li Huanxin. Study on Converter Path delay vary with Temperature in TWSTFT[C],2011.

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