Time-Frequency System Builds and Timing Strategy Research of VHF Band Antenna Array

	Time-Frequency System Builds and Timing Strategy Research of VHF Band Antenna Array
	Liu JQ(刘俊卿)1,2 ; Dong L(董亮)1,3,4 ; Wang M(汪敏)1,4 ; Guo SJ(郭少杰)1,2
	2016-03
关键词	Antenna Array GPS Network Timing
卷号	4
期号	3
页码	116-125
英文摘要	VHF (Very High Frequency) band antennaarray will receive analog signal from universe for storage after digital samplingand adding time scale, and then do the interference analysis of differentsub-station digital signal. It requires the time-frequency system with highprecision and low drifting. This paper explains a time-frequency system of VHFband antenna, which can produce standard 10 MHz signal and clock signal neededby sampler, to ensure that two computers which sampling data has the samesystem time and the storage data has the accurate time scale, the system includestime comparison programme based on the GPS network timing two different samplingcontrol computers. Timing strategy uses a time comparison software which basedon the Labview graphical programming platform. This software captures thesystem time of two computers to analyze and determine the time deviation whenthe two computers occurs time offset, and then grant the GPS time of NTP serverto the two computers through local area network in this time deviation. Finalresults show that this method can automatically calibrate the system time ofthe computers in the LAN, Precision Can Reach 0.1 s Orless.
收录类别	其他
产权排序	第一完成单位
会议网址	http://www.scirp.org/journal/PaperInformation.aspx?PaperID=64153
会议录	Journal of Computer & Communications
会议录出版者	Scientific Research Publishing Inc.
学科主题	天文学
语种	英语
ISSN号	2327-5219
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/9777]
专题	云南天文台_射电天文研究组
作者单位	1.Yunnan Astronomical Observatories, Chinese Academy of Sciences, Kunming, China 2.University of Chinese Academy of Sciences, Beijing, China 3.Information College, Yunnan University, Kunming, China 4.Yunnan University-Yunnan Astronomical Observatories Information Technology United Laboratory, Kunming,
推荐引用方式 GB/T 7714	Liu JQ,Dong L,Wang M,et al. Time-Frequency System Builds and Timing Strategy Research of VHF Band Antenna Array[C]. 见:.http://www.scirp.org/journal/PaperInformation.aspx?PaperID=64153.