昆明VHF雷达干涉测量天线阵设计研究  

Design and Research of Antenna Array of Kunming VHF Radar Using for the Interferometry Observations

作　　者：刘瑶 邓忠新[1] 徐彬[1] 徐朝辉 徐彤[1] LIU Yao;DENG Zhongxin;XU Bin;XU Zhaohui;XU Tong(National Key Laboratory of Electromagnetic Environment,China Research Institute of Radiowave Propagation,Qingdao Shandong 266107,China)

机构地区：[1]中国电波传播研究所电波环境特性及模化技术重点实验室,山东青岛266107

出　　处：《通信技术》2021年第5期1045-1051,共7页Communications Technology

基　　金：国家自然科学基金(No.11672068,No.61871352,No.61601419);电波环境特性与模化重点实验室基金(No.200701001,No.JCKY2019210C026)。

摘　　要：为了研究昆明地区场向不规则体的3D空间特征,需要设计干涉观测用天线阵。因此,在实地测量的基础上,计算并讨论第6组天线不同位置、不同架设高度对原先天线阵方向图的影响,最终选定第3组天线北侧1.6倍波长距离处作为第6组天线的放置位置,并将架设高度在原先的基础上增加0.5 m,干涉测量天线阵方向图仰角为50°,最大增益21.07 dBi。初步观测结果表明,干涉试验结果与理论值接近,对进一步研究昆明地区场向不规则体特征、形成机制具有较大的意义。In order to explore the 3D spatial characteristics of the field-aligned irregularities in Kunming,it is necessary to design an antenna array for interference observation.On the basis of field measurement,the influence of different positions and heights of the sixth group of antennas on the original antenna array pattern is calculated and discussed,and finally the location of the sixth group of antennas is selected,which is 1.6 times the wavelength distance to the north of the third group of antennas,and the erection height is increased by 0.5 meters from the original.The interferometric antenna array pattern elevation angle is 50°,the maximum gain is 21.07dBi.The preliminary observation results indicate that the interference test results are close to the theoretical values,which is of great significance for further exploring the characteristics and formation mechanism of the field-aligned irregularities in Kunming.

关 键 词：VHF雷达 干涉测量 电离层E区 天线阵 不规则体 

分 类 号：TN957.2[电子电信—信号与信息处理]