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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
会议录名称Journal of Computer & Communications
2016-03
卷号4
期号3
页码116-125
DOI10.4236/jcc.2016.43018
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关键词Antenna Array Gps Network Timing
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.

语种英语
学科领域天文学 ; 射电天文学
学科门类理学 ; 理学::天文学
出版者Scientific Research Publishing Inc.
ISSN号2327-5219
URL查看原文
归档日期2016-05-14
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9777
专题射电天文研究组
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]:Scientific Research Publishing Inc.,2016:116-125.
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