用于宽带信号测向的修正RSS算法  

Modified rotate signal sub-space algorithm for wide-band direction finding

作　　者：李福昌[1] 赵春晖[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2004年第2期196-199,共4页Journal of Harbin Engineering University

基　　金：全国优秀博士学位论文作者专项基金资助项目(200037);教育部优秀青年教师资助计划项目;高等学校优秀青年教师教学科研奖励计划基金资助项目.

摘　　要：宽带信号测向是信号处理研究的难点课题之一,在许多领域都有重要应用.如何提高测向算法的精度和运算速度成为急需解决的问题。这里利用矩阵奇异值分解的性质,对旋转信号子空间宽带测向算法中聚焦矩阵的计算方法进行修正,从而给出了一种简便的聚焦矩阵计算方法─修正RSS算法,该算法可以大大减小运算量,与传统的RSS算法相比,修正的RSS算法在方向估计精度、分辨率和相干测向性能等方面都获得了较大提高.将该算法应用到八元均匀线阵上,仿真实验结果证明了算法的有效性.Based on the basis of the property of matrix singular value decomposition, this paper modifies the way of computing the focusing matrix in a rotate signal sub-space wide-band direction finding algorithm and gives a simple way of computing the focusing matrix which is called a modified RSS algorithm. Compared with the traditional RSS algorithm, it can significantly reduce computing amount and improve performances such as accuracy, resolution, and relative direction finding. Applying the algorithm on a uniform linear array with eight sensors, extensive simulation results demonstrate that the algorithm is effective.

关 键 词：宽带信号测向 均匀线阵 修正RSS算法 

分 类 号：TN911.6[电子电信—通信与信息系统]