七元均匀圆阵数字干涉仪DOA最大似然估计算法  

A Maximum Likelihood DOA Estimation Algorithm Based on 7 - Element UCA Digital Interferometer

作　　者：张奎[1] 罗景青[1] 

机构地区：[1]电子工程学院,合肥230037

出　　处：《电子对抗》2011年第4期5-9,共5页Electronic Warfare

摘　　要：针对均匀圆阵的阵列结构特点，研究了七元均匀圆阵数字干涉仪信号到达角测量方法，提出了充分利用所有测量信息的最大似然估计算法。仿真分析表明，该算法可获得很高的测向精度。According to the array architecture characteristic of UCA interferometer, DOA estimation algorithm based on 7 - element UCA digital interferometer is studied, and the maximum likelihood estimation algorithm is proposed in this paper to make full use of phase differences of all baselines. The computer experiments show that this algorithm has higher DOA estimation precision.

关 键 词：均匀圆阵 阵列结构 最大似然估计 

分 类 号：TN953[电子电信—信号与信息处理]