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VHF天线阵列时频系统构建及授时策略研究
Alternative TitleConstruction of time⁃frequency system for VHF⁃band antenna array and its time service strategy research
刘俊卿1,4; 董亮1,2,3; 汪敏1,2; 郭少杰1,4
Source Publication现代电子技术(Modern Electronics Technique)
2017-04
Volume40Issue:7Pages:36-39
DOI10.16652/j.issn.1004-373x.2017.07.010
ClassificationTN820.1+5⁃34
Contribution Rank第1完成单位
Indexed By核心
Keyword天线阵列 Gps 网络授时 时频系统
Abstract

介绍了VHF天线阵的时间频率系统构架,包括标准10 MHz信号和采样器所需时钟驱动的产生,以及基于GPS网络授时两个不同采样控制计算机中的时间比较方案,以确保接收采样数据的两台计算机的系统时间相同,从而保证存储数据的时标准确。授时策略研究基于Lab VIEW图形化编程平台,编写时间对比软件,该软件获取需要校时两台计算机的系统时间,经过分析对比确定两台计算机出现时间偏差的时长。最终实验结果表明该方法能自动校准局域网内计算机的系统时间,精度能达到0.1 s以下。

Other Abstract

A time⁃frequency system architecture of the VHF⁃band antenna array,is introduced. The generation of standard 10 MHz signal and clock driving signal needed by the sampler,and a scheme of time comparison between two sampling and control computers based on different GPS network time services,which can ensure that the two computers receiving the sampling data have the same time and guarantee that the time scale of the storage data is accurate,are presented also in this paper. The study on the time service strategy is based on the LabVIEW graphical programming platform. The time comparison software was compiled to obtain system time of the two computers needing timing. The time length of the time deviation existing in the two computers is determined with the analysis and contract. The experimental results show that the scheme can automatically calibrate the system time of the computers in the LAN,and its deviation is less than 0.1 s.

Funding Project国家自然科学基金项目青年基金[11303094] ; 国家自然科学基金天文联合基金[U1431113] ; 云南省应用基础研究计划应用基础研究面上项目[2015FB189] ; 西部之光A类人才计划
Funding Organization国家自然科学基金项目青年基金[11303094] ; 国家自然科学基金天文联合基金[U1431113] ; 云南省应用基础研究计划应用基础研究面上项目[2015FB189] ; 西部之光A类人才计划
Language中文
Subject Area天文学 ; 射电天文学
MOST Discipline Catalogue理学 ; 理学::天文学
ISSN1004-373X
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9945
Collection射电天文研究组
Affiliation1.中国科学院云南天文台,云南,昆明,650011
2.云南大学⁃云南天文台信息技术联合实验室,云南,昆明,650001
3.云南大学信息学院,云南,昆明,650001
4.中国科学院大学,北京,100049
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
刘俊卿,董亮,汪敏,等. VHF天线阵列时频系统构建及授时策略研究[J]. 现代电子技术(Modern Electronics Technique),2017,40(7):36-39.
APA 刘俊卿,董亮,汪敏,&郭少杰.(2017).VHF天线阵列时频系统构建及授时策略研究.现代电子技术(Modern Electronics Technique),40(7),36-39.
MLA 刘俊卿,et al."VHF天线阵列时频系统构建及授时策略研究".现代电子技术(Modern Electronics Technique) 40.7(2017):36-39.
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