非均匀线阵的宽带波达方向估计  

Wideband Direction-of-Arrival Estimation Based on Non-uniform-Linear-Array

作　　者：贾磊 赵文强 

机构地区：[1]海装重庆局,重庆401121 [2]武汉市长虹桥37-1号,武汉430064

出　　处：《计算机与数字工程》2012年第4期15-16,38,共3页Computer & Digital Engineering

摘　　要：研究了基于非均匀线阵的宽带DOA估计问题和非均匀线阵的阵形。对宽带相干信号子空间算法(CSM)和修正MUSIC算法(MMUSIC)的基本原理作了简单介绍。基于修正MUSIC算法和CSM算法,提出了一种适合非均匀线阵的宽带DOA估计算法。仿真结果表明提出算法在非均匀线阵对称布阵方式下取得很好的效果,提高了DOA估计性能。The manifold of non-uniform linear array and its wideband DOA estimation are studied.The coherent signal-subspace method（CSM）for wideband signals and the modified MUSIC algorithm are introduced.A new algorithm of wideband DOA estimation for non-uniform linear array is proposed based on the modified MUSIC algorithm and the CSM.The simulation results indicate the performance of the algorithm is enhanced for wideband sources and non-uniform linear array.

关 键 词：非均匀线阵 宽带DOA估计 CSM算法 修正MUSIC算法 

分 类 号：TN911.6[电子电信—通信与信息系统]