| DOA矩阵方法及其性能分析 |
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| 引用本文： | 刘福来,汪晋宽,杜瑞燕,于戈. DOA矩阵方法及其性能分析[J]. 东北大学学报(自然科学版), 2006, 27(11): 1220-1223. DOI: - |
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| 作者姓名： | 刘福来 汪晋宽 杜瑞燕 于戈 |
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| 作者单位： | 东北大学信息科学与工程学院,辽宁沈阳,110004;河北青年管理干部学院,河北石家庄,050031 |
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| 基金项目： | 教育部科学技术研究重点项目，高等学校博士学科点专项科研项目 |
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| 摘 要： | 针对位于远场的多径相干窄带信号源,利用3个均匀直线阵提出了一种高分辨2-DDOA估计方法DOA矩阵方法·该方法利用DOA矩阵的同一特征向量估计2-DDOA,因此自动实现2-DDOA的配对,它能够解决具有角度兼并的入射波束问题·从理论上给出了DOA矩阵方法的估计误差,并通过Matlab软件进行仿真试验,比较了均方根误差、理论误差和克拉美-罗界(CRB)三者的关系·仿真结果表明该方法具有很高的分辨率和较小的估计误差,适用于复杂的多径传播环境·
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| 关 键 词： | 方位角 仰角 2-DDOA 多径信号 特征向量 信噪比 |
| 文章编号： | 1005-3026（2006）11-1220-04 |
| 收稿时间： | 2005-11-12 |
| 修稿时间： | 2005-11-12 |
DOA Matrix Method and Its Performance Analysis |
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| LIU Fu-lai,WANG Jin-kuan,DU Rui-yan,YU Ge. DOA Matrix Method and Its Performance Analysis[J]. Journal of Northeastern University(Natural Science), 2006, 27(11): 1220-1223. DOI: - |
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| Authors: | LIU Fu-lai WANG Jin-kuan DU Rui-yan YU Ge |
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| Affiliation: | (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China; (2) Hebei Youth Administrative Cadres College, Shijiazhuang 050031, China |
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| Abstract: | Using three uniform linear arrays (ULAs), a high-resolution DOA matrix method is proposed for the two-dimensional (2-D) direction-of-arrival (DOA) estimation of multipath narrow-band coherent sources impinging on the far field of an antenna array. With the same eigenvector of the DOA matrix used to estimate the 2-D DOA, the method can automatically implement the pairing of estimated parameters and solve the angle overlapping problem of incident beams. The mean square error (MSE) of the 2-D DOA estimation is discussed. By simulations using Matlab software, the theoretical and experimental MSE curves are compared in relation to CRB, and the results show the proposed method has very high resolution with smaller error and it is applicable to multipath environment. |
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| Keywords: | 2-DDOA |
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