YNAO OpenIR  > 射电天文研究组
Alternative TitleAD8302⁃based cable phase difference detection of VHF antenna array
乐林株1,4; 汪敏1,2; 董亮1,2,3
Source Publication现代电子技术(Modern Electronics Technique)
Contribution Rank第1完成单位
Indexed By核心
KeywordVhf 射电天文 相位差检测 电缆 Ad8302

根据甚高频天线阵相位测量原理,提出一种利用相位检测芯片AD8302将接收机至传输馈线的两两阵元的定标信源信号的相位差转化为对应的直流电压,再用12 b量化精度单通道A/D采样,最后做误差分析及修正达到修正相位误差的方法。通过验证在低频(2 MHz等)、高频(300 MHz等)等测量条件下,系统给出的电缆相位误差的精度,如在300 MHz信号输入下,电缆之间距离误差达到了cm精度,可以广泛用于相关天线阵误差修正及电缆误差测量中。

Other Abstract

According to the phase measuring principle of the very high frequency (VHF) antenna array, a method of using the phase detection chip AD8302 to convert the phase difference of the scaling source signal of the two array elements from receiver to transmission feeder line into the corresponding direct voltage. The single channel A/D sampling was realized with 12 bit quanti⁃zation accuracy. The error is analyzed and corrected to realize the phase error correction method. The accuracy of the cable phase error given by the system was verified in the measuring conditions of low frequency (2MHz) and high frequency (300 MHz). The error accuracy of the distance among cables can reach cm level when the input signal is 300 MHz. The system can be widely used for related antenna array error correction and cable error measurement.

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
Subject Area天文学 ; 射电天文学 ; 电子、通信与自动控制技术
MOST Discipline Catalogue理学 ; 理学::天文学 ; 工学 ; 工学::电子科学与技术(可授工学、理学学位) ; 工学::信息与通信工程
Archive Date2017-05-15
Citation statistics
Document Type期刊论文
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
乐林株,汪敏,董亮. 基于AD8302的甚高频天线阵电缆相位差检测[J]. 现代电子技术(Modern Electronics Technique),2017,40(9):104-107.
APA 乐林株,汪敏,&董亮.(2017).基于AD8302的甚高频天线阵电缆相位差检测.现代电子技术(Modern Electronics Technique),40(9),104-107.
MLA 乐林株,et al."基于AD8302的甚高频天线阵电缆相位差检测".现代电子技术(Modern Electronics Technique) 40.9(2017):104-107.
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