基于天线幅相误差校正的干扰感知测试方法  

Interference Perception Testing Method Based on Antenna Amplitude and Phase Error Correction

作　　者：王田[1] 薛仁魁 陈强[1] 李雨濛 吴熙 WANG Tian;XUE Renkui;CHEN Qiang;LI Yumeng;WU Xi(Beijing Oriental Institute of Metrology and Test,Beijing 100086,China)

机构地区：[1]北京东方计量测试研究所,北京100086

出　　处：《火力与指挥控制》2023年第8期93-98,共6页Fire Control & Command Control

基　　金：国家自然科学基金资助项目(61904007)。

摘　　要：随着对抗技术发展,导航设备在复杂电磁环境下的抗干扰性能决定着其效能发挥,特别是多波束技术应用于导航终端抗干扰后,针对干扰特性的识别成为终端研制单位密切关注的问题,干扰来向及干扰强度的精准判断有助于抗干扰算法性能的更大发挥。针对目前主流导航设备抗干扰阵列天线,对天线幅相误差对二维MUSIC算法的影响分析与校正进行研究;基于目前抗干扰导航终端的七阵元天线,开展仿真分析及穹顶式满天星暗室测试,详细描述测试环境、测试场景及测试方法。通过仿真分析及暗室测试,经过天线幅相误差校正后,在三干扰和六干扰下,导航终端干扰感知性能优异,干扰测向精度±5°以内、干扰功率感知误差在5 dB以内,研究成果有助于导航抗干扰终端的研究。With the development of countermeasure technology,the anti-interference performance of navigation equipment in complex electromagnetic environment determines its efficiency,especially after multi-beam technology is applied to anti-interference of navigation terminals,the identification of interference characteristics has become a problem that terminal developers pay close attention to,and the accurate judgment of interference direction and interference intensity is conducive to the greater performance of anti-interference algorithms.Aiming at the anti-interference array antenna of mainstream navigation equipment,the influence of antenna amplitude phase error on the two-dimensional MUSIC algorithm is analyzed and corrected.Based on the seven-array element antenna of the current anti-interference navigation terminal,the simulation analysis and dome-type starry dark chamber test are carried out,and the test environment,test scene and test method are described in detail.Through simulation analysis and anechoic chamber test,after the correction of antenna amplitude phase error,under three interference and six interference,the navigation terminal has excellent interference perception performance,interference direction finding accuracy within±5°,interference power perception error within 5 dB,and the research results are helpful to the research of navigation anti-interference terminal.

关 键 词：天线幅相误差校准 抗干扰 干扰感知 仿真及测试 

分 类 号：TN973[电子电信—信号与信息处理]