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非均匀噪声下频率及二维到达角的联合估计 被引量:7

Joint Estimation for Frequency and 2-D DOA in Nonuniform Noise
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摘要 提出一种适用于L型阵列的频率及二维到达角联合估计新算法.算法通过不同子阵的互协方差矩阵构建平行因子模型,应用三线性交替最小二乘算法求解,无需参数配对及多维搜索,可有效抑制非均匀噪声.均方根误差的仿真结果验证了该算法的有效性. In this paper,a joint estimation algorithm of frequency and two-dimensional(2-D) direction of arrival(DOA) is presented for L-shaped array.It constructs a parallel factor(PARAFAC) model by covariance matrices from different sub-arrays,and calculates frequency and 2-D DOA parameters using the trilinear alternating least square(TALS) algorithm.The main attractions emphasize that this method efficiently eliminates nonuniform noise,while avoids multi-dimensional searching and parameter-pairing.Simulation results of root mean square error(RMSE) show the efficacy of the new method.
出处 《电子学报》 EI CAS CSCD 北大核心 2011年第10期2427-2430,共4页 Acta Electronica Sinica
基金 国家自然科学基金(No.60940011) 2009教育部新世纪人才计划 教育部博士点基金(No.200801831028)
关键词 非均匀噪声 平行因子 频率估计 二维到达角估计 nonuniform noise parallel factor frequency estimation 2-D DOA estimation
作者简介 刘国红女,1986年10月生于内蒙古自治区通辽市,硕士,主要研究方向为阵列信号处理.E—mail:laughl0@mails.jlu.edu.cn 孙晓颖(通讯作者)男,1969年8月生于吉林省怀德县,吉林大学通信工程学院教授,博士生导师,主要研究方向通信信号处理,现已发表论文50余篇,获国家科技进步二等奖1项,吉林省科技进步一等奖2项,教育部技术发明二等奖1项.E-mail:sunxy@jlu.edu.cn 王波男,1975年9月生于四川省都江堰市,吉林大学通信工程学院讲师,主要研究方向为阵列信号处理,现已发表论文10余篇.E—mail:roywang@jlu.edu.cn
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