线性调频信号2-D到达角估计的虚拟阵元法  

2-D DOA estimation of chirp signals based on virtual array

作　　者：黄克骥[1] 田达[1] 陈天麒[1] 

机构地区：[1]电子科技大学电子工程系,四川成都610054

出　　处：《电波科学学报》2003年第5期570-574,共5页Chinese Journal of Radio Science

摘　　要：通过原始数据的共轭重排构造了虚拟阵列 ,利用实际阵列与虚拟阵列的互Wigner Ville分布建立了新的空间时频分布 ,并给出了基于子空间投影和L 阵列的线性调频信号 2 D到达角估计算法。The paper constructs a virtual array based on conjugate data rearrangement and develops a new spatial time frequency distribution by the Wigner Ville distribution between the actual array and the virtual array. Based on subspace projection and an L shaped array, a method to estimate 2D DOA of wideband chirp signals is presented. The theoretical analysis and simulation illustrate that the proposed algorithm is effective.

关 键 词：虚拟阵列 空间时频分布 子空间投影 线性调频信号 到达角估计 

分 类 号：TN911.6[电子电信—通信与信息系统]