基于时空处理的频率与二维DOA联合估计算法  

Joint signal carrier frequency and 2D DOA estimation method based on space-time processing

作　　者：孙晓颖[1] 陈建[1] 林琳[1] 

机构地区：[1]吉林大学通信工程学院,吉林长春130012

出　　处：《通信学报》2009年第8期39-44,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(60572069);教育部科技研究重点项目(106059)~~

摘　　要：提出了一种适用于任意阵列的频率与二维DOA联合估计算法。该算法同时利用空域采样与时域采样构造二维时空矩阵,基于2D-ESPRIT方法进行二维参数估计,仅需3个校准阵元就可通过M个阵元估计出M个独立信源的载波频率、方向角和仰角,无需二维谱峰搜索,计算量较小。仿真实验验证了算法的有效性。A joint estimation method of frequency and 2D（two-dimensional） direction of arrival was proposed for arbi- trary array. Spatial domain sampling and time domain sampling were used synchronously to construct space-time cross-correlation matrixes, and 2D-ESPRIT method was utilized to estimate the 2D parameters in this method. Without spectral peak searching and complex computation, and only needing three guiding sensors, the carrier frequency, azimuth and elevation angles of M independent sources could be estimated by using M sensors. The effectiveness of this method is demonstrated by some simulation examples.

关 键 词：二维DOA估计 阵列信号处理 载频估计 空时处理 

分 类 号：TN911.72[电子电信—通信与信息系统]