分布式信号源波达方向估计方法  

An Approach for Direction of Arrival Estimation of Distributed Sources Induced by Local Scattering

作　　者：万群[1] 杨万麟[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子科技大学学报》2001年第1期1-4,25,共5页Journal of University of Electronic Science and Technology of China

基　　金：国家国防科技重点实验室试点项目

摘　　要：在多径导致的局部散射信号条件下，利用信号源的一阶近似，提出了一种新的分布式信号源波达方向估计方法。新方法不仅改善了波达方向估计性能，且适用于空间信号分布的函数形式未知、分布函数形式不同的分布式信号源同时存在或其他较复杂的空间信号分布情况。By using 1-dimensional DOA searching rather than resort to multidimensional parametric searching, an algorithm for DOA estimation is given based on first order approximation of distributed sources induced by local scattering. It is applicable in circumstance where distributed function form of sources is unknown or sources with different distributed function forms coexist. Numerical examples illuminate that the performance of DOA estimation is improved compared with that of conventional MUSIC method.

关 键 词：分布式信号源 波达方向估计 分布函数 移动通信 

分 类 号：TN929.53[电子电信—通信与信息系统]