宽阵元间距高分辨率MIMO雷达阵列设计与实现  

Design and Implementation of High Resolution MIMO Radar Array with Wide Array Element Spacing

作　　者：田益明 王勇军 TIAN Yi-ming;WANG Yong-jun(PLA 91404 Force,Qinghuangdao 066001 China)

机构地区：[1]解放军91404部队,河北秦皇岛066001

出　　处：《自动化技术与应用》2021年第5期68-72,共5页Techniques of Automation and Applications

摘　　要：针对多输入多输出(multiple-inputmultiple-output,MIMO)雷达传统阵列设计方法中方位分辨率受限于阵元数目,阵元之间耦合作用明显的问题,提出了一种基于宽阵元间距的高分辨率阵列设计方法。使用了平板定向天线作为阵列的基本收发单元,提高了阵列中阵元之间的隔离度,同时采用了宽阵元间距的等效阵列设计方法,扩展了阵列孔径长度,从而进一步提高了方位分辨率,最后用仿真分析结果验证了该方法的有效性。Aiming at the problem that angular resolution is limited by the amount of elements and coupling between elements obviously worsen array performance in traditional array design for multiple-input multiple-output(MIMO)radar,a high angular resolution method based on wide element spacing is proposed.In the method,panel directional antennas are installed for transmitting and receiving to improve element isolation,and a wide element spacing equivalent array is designed to spread the length of array aperture thus to further improve the angular resolution.Simulation analysis results are presented to verify the availability of the method.

关 键 词：多输入多输出雷达 阵列设计 阵元互耦 高分辨率 仿真分析 

分 类 号：TN955[电子电信—信号与信息处理]