基于数据域伪协方差构造的单快拍DOA估计模型  

Single-fast snap DOA estimation based on pseudo-covariance construction of data domain

作　　者：丁学科 赵强[3] 胡莹 刘长明 周志平 DING Xueke;ZHAO Qiang;HU Ying;LIU Changmin;ZHOU Zhiping(Tongfang Electronic Science and Technology Co.,Ltd.,Jiujiang,Jiangxi 332000,China;University of Electronic Science and Technology of China,Chengdu 611731,China;PLA Unit 93436,Langfang,Hebei 065000,China)

机构地区：[1]同方电子科技有限公司,江西九江332000 [2]电子科技大学,成都611731 [3]中国人民解放军93436部队,河北廊坊065000

出　　处：《计算机应用文摘》2022年第13期93-95,共3页Chinese Journal of Computer Application

摘　　要：文章针对低信噪比下单快拍目标DOA估计问题,采用二维相关的数据建立单快拍回波信号模型,通过构造伪协方差矩阵实现矩阵秩的恢复,从相关数据域伪协方差矩阵构造的方法对DOA估计问题进行了分析和研究,并通过仿真验证了方法的有效性。This paper studies the single-fast snap DOA(direction of arrival)estimation of low SNR.In the first place,a single-fast beat echo signal model is built by the two-dimensional correlation data.Secondly,the recovery of the matrix rank is achieved by constructing a pseudo-covariance matrix.Then,the DOA estimation problem is analyzed from the construction of the pseudo-covariance matrix of the correlation data domain.Finally,the method is verified by simulation.

关 键 词：波达方向估计 单快拍 相关数据域 伪协方差构造 二维相关 

分 类 号：TN975[电子电信—信号与信息处理]