一种改进的宽带数字多波束形成技术  

An improveddigital beamforming for wide-band multi-channelsystem

作　　者：黄森洪 宫新保[1] Huang Senhong;Gong Xinbao(Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子工程系,上海200240

出　　处：《航天电子对抗》2017年第5期58-61,64,共5页Aerospace Electronic Warfare

摘　　要：宽带数字多波束形成技术能够获得较高的空间增益和空域分辨率,是现代电子侦察领域的重要研究方向。但是宽带波束形成技术的实现存在信号处理复杂度高、系统功耗大的问题,给电子侦察系统的设计和应用提出了较大的考验。提出了一种通过频域方式实现时域宽带数字波束形成器的方案,能够在宽带、多波束的应用场景中有效降低系统的实现复杂度和功耗。With the capability to achieve high spatial gain and spatial resolution,wide-band digital beamforming technology is an important research field of modern electronic reconnaissance.However,with the bottleneck problems of high complexity and large power consumption,the signal processing of broadband beamforming technology has made a great challenge to the design and implementation of electronic reconnaissance system.A novel scheme to implement time-domain wideband digital beam-former by DFT is proposed,which can effectively reduce the complexity and power consumption of the system in wide-band and multi-beam application scenarios.

关 键 词：多波束 波束形成 复杂度 功耗 

分 类 号：TN971[电子电信—信号与信息处理]