均匀圆阵波束空间二维DOA估计算法  

Algorithm of real eigenvalue decompositions for 6-D DOA estimation with uniform circular arrays

作　　者：李绍滨[1] 赵宜楠[1] 胡航[1] 

机构地区：[1]哈尔滨工业大学电子与通信工程系,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》2004年第6期796-798,共3页Journal of Harbin Institute of Technology

摘　　要：为把适用于均匀线阵的ESPRIT算法、空间平滑技术等推广到均匀圆阵中,采用预处理技术将均匀圆阵从阵元空间映射到波束空间,采用实特征值分解方法得到信号和噪声子空间,并将二维MUSIC和ES PRIT算法结合起来.理论分析和模拟实验表明,该算法减小了计算量,提高了对非相干信号源的估计准确度,同时具有解相干的能力.An improved 2D MUSIC algorithm that operates in beamspace for DOA estimation with the uniform circular array is developed. The algorithm requires only real eigenvalue decompositions to obtain signal and noise subspace estimation, so it has the advantages of simple computation, high precision and good performance in coherent sources. The efficiency of this method is verified by computer simulations.

关 键 词：实特征值分解 均匀圆阵 二维DOA估计 波束空间 

分 类 号：TN957.2[电子电信—信号与信息处理]