一种基于非均匀交叠子阵DBF的低栅瓣电子侦察技术  

A Low-Grid-Lobe Electronic Reconnaissance Technology Based on Non-Uniform Overlapping Subarrays DBF

作　　者：罗德巳 曾元祁 李松 杨小龙 LUO Desi;ZENG Yuanqi;LI Song;YANG Xiaolong(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China;School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,成都610036 [2]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《电子信息对抗技术》2025年第2期42-46,共5页Electronic Information Warfare Technology

基　　金：国家自然科学基金资助项目(62101085)。

摘　　要：针对子阵级数字波束合成(Digital Beam Forming,DBF)在宽空域覆盖时出现的方向图栅瓣问题,提出一种非均匀交叠子阵DBF处理方案。通过子阵间波束方向图和子阵间距两个独立维度的非周期特性,对波束栅瓣进行有效抑制。在同等阵列阵元规模、同等空域覆盖要求、同等灵敏度要求的前提下,数字信号处理资源大幅下降,以较低的硬件成本实现阵列数字波束形成。A non-uniform overlapping subarray digital beam forming(DBF)processing scheme is proposed to address the directional pattern grating problem that occurs in DBF at the subarray level during wide spatial coverage.By utilizing the non-periodic characteristics of two independent dimensions,namely the beam pattern between subarrays and the spacing between subarrays,effective suppression of beam lobes is achieved.Under the premise of the same array element size,same airspace coverage requirements,and same sensitivity requirements,the digital signal processing resources are significantly reduced,and array digital beamforming is achieved at lower hardware costs.

关 键 词：非均匀交叠子阵 数字波束合成 电子侦察 栅瓣抑制 

分 类 号：TN971[电子电信—信号与信息处理]