现代电子技术2024，Vol.47Issue(11)：22-25,4.DOI:10.16652/j.issn.1004-373x.2024.11.005
多项式拟合技术在天线增益测量中的应用研究
Applications of polynomial fitting technique in antenna gain measurement
摘要
Abstract
In this paper,basic principle formula of polynomial fitting is described briefly.The polynomial fitting technique is used to determine the frequency band characteristics of antenna gain and the gain at different elevation angles of large aperture antenna.In the comparative method of antenna gain measurement,the gain of the standard horn is usually known for discrete calibration values,and the analytical formula of standard horn gain are fitted with gains of high frequency,low frequency and two middle frequency points.The gain calculation results of non-fitting frequency points are agree well with known calibration values of standard horn gain,which verifies the validity of the proposed method.At last,the application of polynomial fitting technique in antenna gain measurement of S-band 8.54-meter weather radar and antenna gain measurement of large radio telescope at different elevation angles is described briefly.关键词
多项式拟合技术/增益测量/增益频段特性/射电望远镜增益测量/口径天线/气象雷达天线增益测量Key words
polynomial fitting technique/gain measurement/gain frequency band property/radio telescope gain measurement/aperture antenna/weather radar antenna gain measurement分类
电子信息工程引用本文复制引用
石磊,张冀,秦顺友..多项式拟合技术在天线增益测量中的应用研究[J].现代电子技术,2024,47(11):22-25,4.基金项目
国家科技部重点研发计划项目(2018YFE0207500) （2018YFE0207500）
