基于虚拟阵列变换的相干源测向方法  

DOA Estimation of Coherent Sources Based on Arbitrary Plane Array

作　　者：张程[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2012年第6期16-18,共3页Radio Engineering

摘　　要：针对传统空间谱测向方法对相干信号源测向失效的实际问题,提出了一种基于任意形状平面阵列的测向方法。该方法在建立了相干信号源数学模型的基础上,对虚拟阵列变换思想进行了分析,给出了采用虚拟阵列变换原理和MUSIC算法实现了对相干信号源DOA的估计,提高了测向性能。经仿真试验和理论分析,验证了算法的可行性,并分析了该算法的适用局限性。In this paper,a DOA estimation of coherent sources is proposed,which is suitable for arbitrary plane array. Based on the mathematical model of coherent sources, both virtual array transformation and MUSIC algorithm are used to realize the azimuth estimation of coherent sources. And the D0A estimation performance is greatly improved. Simulation experiment and theoretical analysis also verified the feasibility of this algorithm. And the applicability and limit of this algorithm is also analyzed.

关 键 词：DOA估计 相干信号源 MUSIC算法 虚拟阵列变换 

分 类 号：TP91[自动化与计算机技术]