考虑互耦影响下的DOA估计算法  

PERFORMANCE OF DOA ESTIMATION ALGORITHMS INCLUDING MUTUAL COUPLING

作　　者：孙长果[1] 熊兵[1] 张晓丽[2] 张进民[1] 黄际英[1] 

机构地区：[1]西安电子科技大学天线与电磁散射研究所,西安710071 [2]大唐电信科技产业集团TD-SCDMA研究开发部,北京100083

出　　处：《电子与信息学报》2003年第7期995-999,共5页Journal of Electronics & Information Technology

摘　　要：研究了考虑互耦情况下的DOA估计算法—MUSIC算法。互耦改变了阵列响应矢量和接收信号相干矩阵的特征值结构,因此影响了DOA估计的精度,用矩量法计算了由半波振子阵列的单元之间的互耦,通过得到的阻抗矩阵来估计互耦的影响。最终给出了计算机仿真的结果。The effect of mutual coupling among array elements on the performance of MUSIC algorithm is investigated. The presence of mutual coupling distorts array response vector and the eigenstructure of the covariance matrix. The Method of Moment (MoM) is used to evaluate the mutual coupling among the dipoles. The admittance matrix is then used to eliminate the effects of mutual coupling. Finally, the results of computer simulation are given.

关 键 词：DOA 估计算法 MUSIC算法 阵列天线 互耦 

分 类 号：TN820.15[电子电信—信息与通信工程]