利用空间时频分布实现宽带FM信号2-D到达角估计  

2-D AOA estimation of multiple wide-band FM sources based on spatial time-frequency distributions

作　　者：田达[1] 黄克骥[1] 陈天麒[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054

出　　处：《电波科学学报》2003年第1期91-94,共4页Chinese Journal of Radio Science

摘　　要：提出一种新的宽带FM信号二维到达角估计方法。本算法将L型天线阵两个臂的空间时频分布矩阵分别进行相干信号子空间平滑处理 ,并用子空间方法实现方位和俯仰角估计。计算机仿真证实了算法的有效性。A novel 2-D angle-of-arrival(AOA) estimation technique for multiple wide-band FM sources is developed in this paper.Based on an L-shaped antenna array, the proposed algorithm computes spatial time-frequency distribution(STFD) matrices over multiple time-frequency points for coherent signal-subspace(CSS)processing.Azimuth and elevation angle estimates are obtained by subspace-based method.Computer simulations demonstrate the efficacy of the proposed algorithm.

关 键 词：空间时频分布 相干信号子空间 FM信号 调频信号 L型天线阵 俯抑角 仿真 二维到达角估计方法 平滑处理 

分 类 号：TN911.7[电子电信—通信与信息系统]