一种基于天线空域极化特性差异的阵列极化滤波新方法

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中图分类号：TN95 文献标志码：A DOI：10.12305/j.issn.1001-506X.2025.03.01

A new array polarization filtering method based on the antenna space-polarization characteristic differences

WANG Yiqing，WANG Zhanling＊，ZHOU Jian，PANG Chen，LI Yongzhen ：Collegeof Electronic Scienceand Technology，National UniuersityofDefense Technology，Changsha410o3，China

Abstract：Polarization filtering methods can efectively combat radaranti-mainlobe interference toa certain extent，but they also impose highdemands on system architecture.In response to this cost contradiction，a new array polarization filtering method basedon the diferences inpolarization spatial characteristics of elements ina single-polarizationis proposed.Starting fromthemechanismof diferences，thismethodutilizestheactiveelement patterns to solve the polarized beam synthesis model，obtaining multiple polarized beams simultaneously.By decomposing the received signals from multiple beams into orthogonal polarizations and estimating interference polarization parameters，interference suppression polarization filtering is achieved. Simulation experiments are conducted based on measured pattern data from an antenna array in the anechoic chamber，and the results indicate that for targetsand interference signals with overlapping directions of arrival，effective interference suppression can beachieved if their polarization states exhibit a certain level of difference.This method demonstrates significant cost-effectiveness advantages and provides new insights for upgrading and transforming single-polarization array radar systems.

Keywords：polarization filtering；anti-mainlobe interference；active element pattern（AEP）；polarized pattern synthesis

0 引言

现代电子对抗技术不断发展，使雷达系统面临的战场电磁环境变得越来越复杂。（剩余16933字）