基于ESPRIT宽带信号测向技术研究  

Research on Broadband Signal Direction Finding Technology Based on ESPRIT

作　　者：谢诺[1,2] 葛建华[1] 窦修全[2] 

机构地区：[1]西安电子科技大学ISN国家重点实验室,陕西西安710071 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2009年第12期17-19,共3页Radio Engineering

摘　　要：研究了基于ESPRIT宽带信号测向技术,采用信号子空间变换方法分别对2个平移矩阵聚焦处理,并利用窄带ESPRIT测向方法计算出来波方向,提出利用ESPRIT与聚焦处理相结合测向的方法,解决了ESPRIT宽带信号测向精度差问题。通过聚焦处理有效抑制噪声,提高信噪比,从而获得高精度、高分辨率的渐进无偏估计信号方向。计算机仿真验证了算法的有效性。This paper discusses broadband signal direction finding technology based on ESPRIT, a manifold matrix and its phase delays version are focused by the signal subspace transformation method, then narrowband ESPRIT direction finding algorithm is used to estimate DOA. And this paper puts forward the direction finding method of combination of ESPRIT and focusing to improve the precision of ESPRIT when operated on wideband signals and suppress the noise, thereby we can get high accuracy and resolution DOA estimation. The simulation results show validity of this algorithm.

关 键 词：ESPRIT 聚焦矩阵 宽带测向 均匀线阵 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]