基于music算法的天线系数测量信号分析方法.pdf

文档介绍：第 47 卷第 10 期天津大学学报(自然科学与工程技术版)
2014 年 10 月 Journal of Tianjin University(Science and Technology) Oct. 2014

DOI:

基于 MUSIC 算法的天线系数测量信号分析方法
刘星汛 1, 2,张涛 1
(1. 天津大学电气与自动化工程学院,天津 300072;2. 北京无线电计量测试研究所,北京 100058)
摘要:基于自由空间场地衰减数学模型,提出多重信号分类(MUSIC)算法的信号分析方法,从在固定天线高度测
量的场地衰减信号中,提取直射波场地衰减量, 500,MHz 的半波偶极子天线为研
究对象,在 300,MHz~1,GHz ,此分析方法提取的直射波场地衰减与采用矩量
法的仿真值吻合较好,利用此场地衰减推算的远场天线系数与 CISPR16-1-6 的标准场地法测量的天线系数一致性较
好,此算法可以用于天线系数测量的信号提取.
关键词:天线系数;MUSIC 算法;天线;信号处理
中图分类号:TG156 文献标志码:A 文章编号:0493-2137(2014)10-0909-05

MUSIC Algorithm-Based Signal Analysis Method
of Antenna Factor Measurement
1, 2 1
Liu Xingxun ,Zhang Tao
(1. School of Electrical Engineering and Automation,Tianjin University,Tianjin 300072,China;
2. Beijing Institute of Radio Metrology and Measurement,Beijing 100058,China)
Abstract:A signal analysis method based on multiple signal classification(MUSIC)is proposed for distilling the site
attenuation(SA)of direct wave from SA measurement with antenna at fixed height. Based on free-space site attenna-
tion mathematic model,the far field antenna factor was calculated using the direct wave SA. A half-wave dipole an-
tenna with tune frequency 500,MHz was used in experimental measurement in the frequency range of 300,MHz~
1,GHz. The direct wave SA agreed well wi