| DOA估计算法性能分析及仿真 |
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| 引用本文： | 陈小龙,关键,黄勇.DOA估计算法性能分析及仿真[J].海军航空工程学院学报,2009,24(2):191-194. |
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| 作者姓名： | 陈小龙 关键 黄勇 |
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| 作者单位： | 海军航空工程学院,电子信息工程系,山东,烟台,264001 |
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| 基金项目： | 教育部新世纪优秀人才支持计划，国家自然科学基金 |
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| 摘 要： | 分析了几种常见空间谱估计算法的结构,提出了一种未知信源数的高分辨DOA估计算法。该算法继承了求根MUSIC算法优越的性能,直接利用阵列接收数据的协方差矩阵,无须预判信源个数和进行特征值分解,实现高分辨谱估计,同时在信噪比较小时,仍能保持较高的角度分辨力。最后通过大量的计算机仿真实验比较了各种算法的性能,证明了新算法理论的正确性和有效性。
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| 关 键 词： | 空间谱估计 方位超分辨 多重信号分类法 信源数估计 特征值分解 |
Performance Analysis and Simulation of DOA Estimation Algorithm |
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| CHEN Xiao-long,GUAN Jian and HUANG Yong.Performance Analysis and Simulation of DOA Estimation Algorithm[J].Journal of Naval Aeronautical Engineering Institute,2009,24(2):191-194. |
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| Authors: | CHEN Xiao-long GUAN Jian and HUANG Yong |
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| Institution: | Department of Electronic and Information Engineering;NAAU;Yantai Shandong 264001;China |
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| Abstract: | In this paper, some common spatial spectrum estimation algorithms were analyzed and a high-resolution DOA estimation algorithm without number of signal estimation was presented. It might be viewed as a succession of Root-MUSIC method with superior performance, using directly the covariance matrix of receiving data. High-resolution spectrum estimation was achieved, which not only avoided number of signal estimation and EVD, but also could still maintain a relatively high angle resolution at lower SNR. Finall... |
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| Keywords: | spatial spectrum estimation azimuth super-resolution multiple signal classification number of signal estimation EVD |
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