一种基于旋转不变技术信号参数估计的改进算法  

A modified algorithm based on estimating signal parameters via rotational invariance technique

作　　者：许博雅[1] 郑宏兴[1] 

机构地区：[1]天津工程师范学院天线与微波技术研究所,天津300222

出　　处：《天津工程师范学院学报》2010年第2期20-22,共3页Journal of Tianji University of Technology and Education

基　　金：国家自然科学基金资助项目(60871026);天津工程师范学院青年教师基金资助项目(05010)

摘　　要：为了有效估计智能天线系统中来自相关信号源的信号到达方向,提出了一种共轭倒序向量平均的算法,该方法是对二维旋转不变技术的信号参数估计算法的改进。数值实验结果表明,改进算法在不增加计算机资源占用的基础上,既能估计独立信号源的信号到达方向,也能有效地估计相关信号源的信号到达方向。In order to estimate the signal direction of arrival from correlated signal sources in smart antenna system,an algorithm is proposed,which is named conjectured vector of inversed order.The algorithm is from modified two-dimensional estimating signal parameters via the rotational invariance technique.Numerical experiment shows that the proposed algorithm can estimate the signal direction of arrival from independent signal sources efficiently.Furthermore,it can estimate the signal direction of arrival from correlated signal sources without additional computer resources obviously.

关 键 词：智能天线 双线性正交线阵 相关信号源 信号到达方向 

分 类 号：O451[理学—无线电物理] TN911[理学—物理]