空时超分辨方法在高频地波超视距雷达中的应用  

The Application of Spatial-Temporal Super Resolution Method in HF-SWR

作　　者：苏洪涛[1] 张守宏[1] 保铮[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《电子学报》2006年第3期437-440,共4页Acta Electronica Sinica

基　　金：国防预研项目(No.40106020203);国防预研基金(No.51431030205ZS0105)

摘　　要：本文研究了一种新的高频地波超视距雷达目标距离以及方位角超分辨问题.在该雷达系统中,各个发射阵元采用不同的发射载频,因此目标回波信号中存在目标距离与方位角的耦合,本文提出利用这种耦合关系,采用M U S IC(M u ltip le S igna l C lassifica tion)算法获得目标距离以及方位角的超分辩,从而提高在多目标环境下测距、测角精度.仿真结果验证了该方法的有效性.Super resolution for target range and azimuth angle of a novel bistatic HF-Surface Wave Radar （HFSWR） is investigated. As different transmitting antenna utilizes different carder frequency,there has coupling between target range and azimuth angle. According to the characteristics of the target range and azimuth angle coupling, a method employ the Multiple Signal Classification （MUSIC） algorithm to achieve target range and azimuth angle super resolution is proposed, which can improve range and azimuth angle estimation accuracy under multiple targets environment. Simulation results validate the effectiveness of this method.

关 键 词：高频地波雷达 超分辨 MUSIC(Multiple Signal Classification) 

分 类 号：TN958.93[电子电信—信号与信息处理]