方向图谱估计在二维多波束测角中的应用  

2-D Multi-Beam Direction Finding Based on Spatial Spectrum Estimation With Radiation Pattern

作　　者：项川 李华 林选锋 XIANG Chuan;LI Hua;LIN Xuan-feng(Science and Technology on Electronic Information ControlLaboratory,Chengdu 610036,China)

机构地区：[1]电子信息控制重点实验室,成都610036

出　　处：《电子信息对抗技术》2018年第5期46-50,共5页Electronic Information Warfare Technology

摘　　要：在阵列天线中,利用多个二维波束的输出和多波束方向图的关系,并结合空间谱估计算法,提出了一种二维多波束方向图谱估计的角度测量算法。提出的算法可在单次脉冲下实现高精度测角和低信噪比测角的功能,通道幅相不一致性影响较小。通过程序仿真,验证了上述结果。Combined with spatial spectrum estimation algorithm,using the relationship between multiple 2-D beams outputs and multi-beam radiation patterns,an algorithm of 2-D multi-beam direction finding is given. The algorithm has the ability of high direction finding precise and the ability of direction finding in low SNR,the amplitude and phase perturbation has a small effect on this algorithm. Through the simulation programs,the results are proved.

关 键 词：空间谱 多波束 天线方向图 MUSIC算法 

分 类 号：TN820.12[电子电信—信息与通信工程]