现代雷达2026，Vol.48Issue(3)：8-16,9.DOI:10.16592/j.cnki.1004-7859.2025118
极化敏感阵列抗干扰数目上界研究
A Study on the Upper Bound of Anti-interference Number of Polarization Sensitive Array
徐振海 1陈新耀 1陈以晴 1肖顺平1
作者信息
- 1. 国防科技大学 电子信息系统复杂电磁环境效应国家重点实验室,湖南 长沙 410073
- 折叠
摘要
Abstract
In order to solve the problem of the upper bound of anti-interference number for polarization sensitive array,the upper bound of the anti-interference number is formulated to the maximum number of linearly independent steering vectors.From the per-spective of Khatri-Rao product,the deterministic and general conditions for the linearly independent steering vectors are provided.For the N-element orthogonal dipole uniform linear arrays,it is proved that the sufficient and necessary condition for the steering vectors to be linearly independent is the number of signals K≤N.When no more than two signals have the same incident angles,it is proved that the sufficient and necessary condition for the steering vectors to be linearly independent with probability 1 is the number of signals K≤2N.Theoretical results show that when the number of completely polarized mainlobe interferences does not exceed 1,the polarization sensitive array can suppress at most 2N-1 interferences.While there are 2 completely polarized main-lobe interferences or 1 partially polarized mainlobe interference,the polarization sensitive array can not completely suppress inter-ferences.Simulation experiments validate the correctness of the theoretical conclusions too.The research provides theoretical guid-ance for the application of polarization sensitive arrays in radar,communication,navigation,and electronic countermeasures.关键词
极化敏感阵列/抗干扰数目上界/极化域导向矢量/卡氏积/抗主瓣干扰Key words
polarization sensitive array/upper bound of anti-interference number/polarization steering vector/Khatri-Rao prod-uct/mainlobe interference suppression分类
信息技术与安全科学引用本文复制引用
徐振海,陈新耀,陈以晴,肖顺平..极化敏感阵列抗干扰数目上界研究[J].现代雷达,2026,48(3):8-16,9.
