子阵级数字阵列雷达波束形成性能分析  

Beam-forming performance analysis of subarray digital array radar

作　　者：曹书华 汪凌艳 王勋 Cao Shuhua;Wang Lingyan;Wang Xun(Leihua Electronic Technology Research Institute of AVIC,Wuxi 214063,China)

机构地区：[1]中国航空工业集团公司雷华电子技术研究所,无锡214063

出　　处：《电子测量技术》2020年第5期33-38,共6页Electronic Measurement Technology

摘　　要：子阵级数字阵列雷达应用越来越广泛,但实际应用中它的性能存在一定限制性,为了对其性能进行分析,先介绍了基于它的子阵划分的形式以及波束形成方法,然后对子阵级数字阵列雷达的多波束接收、宽带信号收发、通道幅相误差的影响进行了研究和分析。仿真结果表明:子阵级数字阵列雷达可以在一定角度范围内进行灵活的多波束接收,并收发一定带宽范围的宽带信号,极大地提高了雷达的空域搜索效率和抗干扰能力;为了让子阵级数字阵列雷达波束形成性能最优,必须对各通道进行幅相误差校正。Sub-array digital array radar is more and more widely used,but its performance has some limitations in practical applications.In order to analyze its performance,the sub-array division based on its form and beamforming method are introduced.The effects of multi-beam reception,broadband signal transmission and reception,amplitude and phase error of channel have been studied and analyzed.The simulation results show that the sub-array digital array radar can perform flexible multi-beam reception within a certain range of angles,transmit and receive broadband signals in a certain bandwidth range,which greatly improves the radar′s airspace search efficiency and antijam ability.The amplitude and phase error of each channel must be corrected for the sub-array digital array radar have the best beamforming performance.

关 键 词：数字阵列雷达 多波束 宽带 幅相误差校正 

分 类 号：TN957.52[电子电信—信号与信息处理]