天线相位检测系统的设计与实现
发布时间：2019-06-04 09:01
【摘要】：在射电天文领域,对于目前规模越来越大的射电望远镜阵列,为了让能够让阵列中的若干台射电天线协同工作,高精度的相位差检测尤为重要。在相位差的检测中,参考信号以及时钟信号的精度都将对最终结果造成影响,如何选择合适的时钟信号以及参考信号,如何将这些模块进行合理的架构整合将是本文需要去尝试研究并解决的重点。在此背景下,本文将提出一种能够适用于射电天文学领域的天线相位差检测装置,该装置基于AD8302芯片进行设计并进行试验验证,通过实验结果探讨所遇到的问题以及相关解决方案。 本文共分为五章。第一章绪论简要概括了射电天文学发展史以及课题背景；第二章综述了相位差检测的传统方法以及这些方法的优缺点,从中选择最适合课题的理论方法,并最终确定了基本的设计思路；第三章则是针对当前项目背景下的相位差检测设计思路做出概述,其中包括了芯片模块的构成以及所需要的元器件等,并通过知识产权核在开发板上生成理想的DDS参考信号；第四章是本文总结了前人的经验之后,通过对相位差检测的学习和理解,对基于AD8302的相位差检测模块进行了设计并进行了试验验证,总体结果达到要求。最后一章总结了设计过程中所遇到的问题以及所收获的成果,并结合目前的科技发展趋势对系统中的不足之处提出了改进设想。
[Abstract]:In the field of radio astronomy, in order to enable several radio antennas in the array to work together, high precision phase difference detection is particularly important for the larger and larger radio telescope arrays. In the detection of phase difference, the accuracy of the reference signal and the clock signal will affect the final result, how to select the appropriate clock signal and the reference signal, How to integrate these modules reasonably will be the focus of this paper. Under this background, this paper will propose a antenna phase difference detection device which can be used in the field of radio astronomy. The device is designed based on AD8302 chip and verified by experiments. Through the experimental results, the problems encountered and related solutions are discussed. This paper is divided into five chapters. The first chapter briefly summarizes the development history and background of radio astronomy. In the second chapter, the traditional methods of phase difference detection and the advantages and disadvantages of these methods are summarized, from which the most suitable theoretical methods are selected, and the basic design ideas are finally determined. The third chapter is an overview of the design idea of phase difference detection under the background of the current project, including the composition of the chip module and the required components, and generates the ideal DDS reference signal on the development board through the intellectual property core. The fourth chapter is after summing up the previous experience, through the study and understanding of phase difference detection, the phase difference detection module based on AD8302 is designed and verified by experiments, and the overall results meet the requirements. In the last chapter, the problems encountered in the design process and the achievements are summarized, and the improvement ideas are put forward according to the current development trend of science and technology.
【学位授予单位】：云南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN820
本文编号：2492615
[Abstract]:In the field of radio astronomy, in order to enable several radio antennas in the array to work together, high precision phase difference detection is particularly important for the larger and larger radio telescope arrays. In the detection of phase difference, the accuracy of the reference signal and the clock signal will affect the final result, how to select the appropriate clock signal and the reference signal, How to integrate these modules reasonably will be the focus of this paper. Under this background, this paper will propose a antenna phase difference detection device which can be used in the field of radio astronomy. The device is designed based on AD8302 chip and verified by experiments. Through the experimental results, the problems encountered and related solutions are discussed. This paper is divided into five chapters. The first chapter briefly summarizes the development history and background of radio astronomy. In the second chapter, the traditional methods of phase difference detection and the advantages and disadvantages of these methods are summarized, from which the most suitable theoretical methods are selected, and the basic design ideas are finally determined. The third chapter is an overview of the design idea of phase difference detection under the background of the current project, including the composition of the chip module and the required components, and generates the ideal DDS reference signal on the development board through the intellectual property core. The fourth chapter is after summing up the previous experience, through the study and understanding of phase difference detection, the phase difference detection module based on AD8302 is designed and verified by experiments, and the overall results meet the requirements. In the last chapter, the problems encountered in the design process and the achievements are summarized, and the improvement ideas are put forward according to the current development trend of science and technology.
【学位授予单位】：云南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN820
【参考文献】
中国期刊全文数据库 前10条
1 叶林;周弘;张洪;张杰;;相位差的几种测量方法和测量精度分析[J];电测与仪表;2006年04期
2 曹兰娟;;基于AD8302芯片的新的幅相测量系统[J];电子工程师;2007年03期
3 高荣山;丁超;;AD8302在幅相检测系统中的应用[J];今日电子;2006年03期
4 郑珍,王海,周渭,张云华;AD8302型相位差测量系统的设计[J];电子科技;2005年11期
5 韩洋;侯文;;高精度低频正弦信号相位差测量[J];国外电子测量技术;2008年02期
6 沙占友;刘阿芳;王科;;基于AD8302的单片宽频带相位差测量系统的设计[J];国外电子元器件;2006年01期
7 李星;许国宏;王耀磊;;高精度幅相检测系统的设计[J];电子设计工程;2012年01期
8 葛天孝,宋艳杰;0～±180°相位差测量电路的组成与应用[J];黑龙江矿业学院学报;1996年02期
9 李谦祥;温嘉斌;杨波;高阳;;一种相位差测量及显示的新方法研究[J];黑龙江水专学报;2006年01期
10 刘静;马彦恒;;基于AD8302的高精度幅相检测系统的设计[J];计算机测量与控制;2011年02期
，本文编号：2492615
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