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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
Source PublicationJournal of Computer & Communications
2016-03
Volume4
Issue3
Pages116-125
DOI10.4236/jcc.2016.43018
Contribution Rank第1完成单位
Indexed By其他
Conference NameN/A
Conference DateN/A
Conference PlaceN/A
KeywordAntenna Array Gps Network Timing
Abstract

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.

Funding ProjectYouth Fund of National Natural Science Foundation of China[11303094] ; National Natural Science Foundation Astronomy joint fund of China[U1431113] ; applied basic research program and project of Yunnan province of China[2015FB189] ; Western Light A class talent program of China
Funding OrganizationYouth Fund of National Natural Science Foundation of China ; National Natural Science Foundation Astronomy joint fund of China ; applied basic research program and project of Yunnan province of China ; Western Light A class talent program of China
Language英语
Subject Area天文学 ; 射电天文学
MOST Discipline Catalogue理学 ; 理学::天文学
PublisherScientific Research Publishing Inc.
ISSN2327-5219
URL查看原文
Archive Date2016-05-14
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9777
Collection射电天文研究组
Affiliation1.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,
Recommended Citation
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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