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适用任意阵列的变换域二维波达角快速估计算法 被引量：10

Fast 2-D DOA Estimation Method in Transformed Domain with Arbitrary Arrays
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摘要 MUSIC(Multiple Signal Classification)算法是波达角(the Direction of Arrival,DOA)估计的经典算法之一,但其在二维DOA估计中因需进行二维谱峰搜索而计算量十分巨大.为降低MUSIC算法的计算量,本文在引入变换域DOA概念的基础上提出了一种能够适用于任意阵列结构的二维DOA快速估计算法,即变换域MUSIC(transformed do-main-MUSIC,TD-MUSIC)算法.理论分析和仿真实验表明:该算法不但将空间谱峰搜索的范围减小一半而且具有更低维度的噪声子空间,因而其计算量远小于MUSIC算法.同时,新算法具有比MUSIC更高的空间分辨率. As one of the most popular techniques for direction-of-arrival（DOA）estimation,the multiple signal classification（MUSIC）algorithm has a tremendous computational complexity for 2-D DOA estimation problems,which is mainly caused by an involved 2-D spectral search step.To reduce the complexity,a new algorithm named the transformed domain MUSIC（TD-MUSIC）for fast 2-D DOA estimation with arbitrary arrays is presented by this work based on a new concept of the transformed domain DOA.It is shown by theoretical analysis and experiment results that TD-MUSIC not only realizes a compression for the spectral search region,but also has a dimension-reduced noise subspace and hence,it requires much lower complexity than the standard MUSIC.Moreover,the new method also shows an improved resolution as compared to MUSIC.
作者 闫锋刚 金铭 乔晓林
机构地区 哈尔滨工业大学电子与信息工程学院 哈尔滨工业大学(威海)信息工程研究所
出处 《电子学报》 EI CAS CSCD 北大核心 2013年第5期936-942,共7页 Acta Electronica Sinica
关键词 变换域MUSIC DOA估计 虚拟辐射源 交替投影算法 奇异值分解 transformed domain MUSIC direction-of-arrival estimation virtual source alternate projection method（APM） singular value decomposition（SVD）
分类号 TN959.2 [电子电信—信号与信息处理]
  • 相关文献

参考文献24

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二级参考文献13

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共引文献16

同被引文献61

  • 1柴立功,罗景青.一种强干扰条件下微弱信号DOA估计的新方法[J].电子与信息学报,2005,27(10):1517-1520. 被引量：24
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引证文献10

二级引证文献50

电子学报
2013年 第5期

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