基于PM的波达方向、频率的快速估计方法  

Fast algorithm for direction-of-arrival and frequency estimation based on PM

作　　者：周争光[1] 廖桂生[1] 王洪洋[1] 吴云韬[2] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071 [2]中国科学院声学研究所数字系统集成部,北京100080

出　　处：《电波科学学报》2006年第3期428-431,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金(60472097);国防科技重点实验室基金联合资助

摘　　要：提出了一种基于传播算子的波达方向、频率快速联合估计方法,该算法不需要估计阵列接收信号的高维空、时协方差矩阵及其相应的奇异值或特征分解,具有更低的运算复杂度,算法能适合于非均匀阵列结构且估计出的空时参数能自动配对。最后计算机仿真证实了方法的有效性。Based on the propagator method （PM）, a novel approach of combining frequency and direction-of-arrival（DOA） estimation in array processing is proposed in this paper. Compared with the conventional approaches, the presented method has lower computational complexity with insignificant performance degradation because of avoiding the estimation and eigendecomposition of the covariance matrix of the received signals. Furthermore, the algorithm can be applied to arbitrary array structures and automatically determines the parameter pair matching. It＇s effectiveness is verified via computer simulations.

关 键 词：传播算子 波达方向 频率 阵列结构 

分 类 号：TN957.51[电子电信—信号与信息处理]