相干分布式目标一维波达方向搜索迭代估计方法  

An Iterative Approach for DOA Estimation of Correlated Distributed Sources Based on 1-Dimensional DOA Search

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》2000年第6期583-586,共4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：在信号源角分布函数具体的数学形式未知的情况下,基于角分布函数共轭对称性约束条件,提出了一种相干分布式目标一维波达方向搜索迭代估计方法,该方法不用多维参数搜索,并适用于角信号分布函数形式不同的分布式目标同时存在的情况。This paper proposes a recursive approach to direction of arrival estimation of spatially distributed signals. By using 1-dimensional DOA searching rather than resort to multidimensional parametric searching, DOA estimation of distributed sources are obtained. The algorithm needs little prior knowledge about the distribution function of the sources and can be applied in non-uniform array condition. The simulation shows that the new method outperforms the MUSIC algorithm by reducing the sensitivity for scenarios with distributed sources.

关 键 词：相干分布式目标 角分布函数 一维波达方向估计 迭代方法 

分 类 号：TN971[电子电信—信号与信息处理]