冲激杂波下的圆阵天线二维DOA估计方法  

Two-dimensional DOA Estimation Method for Uniform Circular Array Antenna in Impulse Clutter Noise

作　　者：张安清[1] 陈秋琼[1] ZHANG An-qing;CHEN Qiu-qiong(Department of Information system,Dalian Naval Academy,Dalian 116018,China)

机构地区：[1]海军大连舰艇学院信息系统系

出　　处：《火力与指挥控制》2020年第1期18-21,26,共5页Fire Control & Command Control

基　　金：国家自然科学基金资助项目（61172108）

摘　　要：为提高复杂电磁环境下海上通信的安全性、可靠性及抗干扰能力,舰船采用均匀圆阵天线实现有向通信,达到不需转动天线也能形成360°均匀覆盖的波束和干扰零陷的目的。针对存在显著冲激性噪声时传统波束形成方法不能得到满意结果的问题,提出了一种非高斯稳定分布噪声模型下均匀圆阵分数低阶矩MUSIC韧性波束形成新方法,并对比分析了所提的分数低阶矩MUSIC与传统MUSIC方法在稳定分布噪声下的波束形成性能。结果表明,新方法的DOA估计性能优于传统算法,适应复杂噪声环境的韧性强,应用前景广阔。In order to improve the security,reliability and anti-jamming for directional communication,uniform circular array antenna on warship is adopted so that beams and notchs are obtained at 360毅bound without rolling.To direct at low performance of conventional beamforming methods under condition of impulsive random noise,a new robust beamforming method is proposed for uniform circular array in complexity electromagnetic environment.The beamforming performances are analyzed contrastively under alpha stable distribution noises for FLOM_MUSIC and MUSIC algorithm.Simulation experiments and analysis show that FLOM_MUSIC's performance is better than MUSIC algorithm in complex electromagnetic environment,and it is good for extend application.

关 键 词：波束形成 有向通信 稳定分布 分数低阶矩 均匀圆阵 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]