无线电工程2012，Vol.42Issue(7)：52-54,3.
射电望远镜天线的指向精度测量系统设计
Design of Pointing Accuracy Measurement System for Radio Telescope
曹艳东 1张旭1
作者信息
- 1. 中国电子科技集团公司第五十四研究所,河北石家庄050081
- 折叠
摘要
Abstract
The pointing accuracy is an important criterion for large aperture radio telescope ,which is used to evaluate the pointing capability of the antenna. It＇ s important for user to measure the pointing accuracy precisely. According to the operation characteristics of the radio telescope,this paper presents a method that makes the radio star as the radio source to measure the pointing accuracy. The paper introduces the main measuring principle taking the azimuth axis as an example, and designs the software and hardware as needed. Firstly, the operation characteristic and basic measurement theory of radio telescope are introduced and analyzed. Then the measurement method for antenna pointing accuracy, that radio star is adopted as emission source, is proposed. Subsequently, the constitution of the measurement system and the analysis of measurement results are presented. The results validate that the pointing accuracy of the antenna can be measured rapidly and exactly in the whole sky area by this proposed method.关键词
指向精度/射电星/射电望远镜/扫描Key words
pointing accuracy/radio star/radio telescope/scan分类
信息技术与安全科学引用本文复制引用
曹艳东,张旭..射电望远镜天线的指向精度测量系统设计[J].无线电工程,2012,42(7):52-54,3.
