基于状态空间法的多子阵超分辨测向技术  

Multi-subarray Super-resolution Direction Finding Using State-space Method

作　　者：陈文晟[1] 余继周[1] 

机构地区：[1]北京无线电测量研究所,北京100854

出　　处：《空军预警学院学报》2013年第1期25-27,共3页Journal of Air Force Early Warning Academy

摘　　要：基于状态空间法,提出了一种稀疏多子阵场景下的超分辨测向技术.该技术利用多个物理阵列的接收数据,应用状态空间法在子阵间进行虚拟阵元内插,从而合成具有等效大孔径的雷达阵列,以提高测向分辨率.数值仿真结果表明,应用该技术使波束宽度远小于目标的角间距,能够很好地分辨并确定目标的方位角,从而验证了所提超分辨测向技术的有效性.Based on the state-space method, a super-resolution direction finding technique for the scenario of sparse multi-subarrays is proposed in this paper, where, the state-space method is applied between subarrays for carrying out the interpolation of virtual elements thus synthesizing the radar arrays that have an equivalent bigger aperture to boost the resolution of direction finding. Numerical simulation results show that employing this proposed technique allows the wavebeam width to be less than the targets＇ angular separation and is capable of distinguishing and determining the target＇s azimuthe,thus proving the effectiveness of this proposed super resolution direction finding.

关 键 词：超分辨测向 状态空间 虚拟阵元 内插 

分 类 号：TN953.5[电子电信—信号与信息处理]