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基于均匀圆阵的方位估计及互耦自校正算法 被引量：3

DOA Estimation and Mutual Coupling Self-calibration Algorithm for Circular Array
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摘要 阵元互耦会使大部分高分辨DOA(Direction of Arrival,来波方向)估计算法的性能恶化。针对均匀圆阵,提出一种互耦条件下的方位估计及自校正算法。该算法先利用均匀圆阵特殊的互耦特性对信号方位信息和互耦信息实现了解耦合,再构造代价函数来估计信号的方位信息,最后根据方位信息来估计互耦信息,整个过程无需任何互耦信息和校正源就可以实现两类参数的估计。理论分析和仿真实验表明:提出的算法很好地解决了均匀圆阵的耦合问题,具有精度高、计算量小的特点。 Mutual coupling can make most of high resolution DOA algorithm failure.A DOA estimation and self-calibration algorithm was presented for circular array under the condition of mutual coupling.The proposed algorithm utilized special mutual coupling characteristic of circular array to decouple the signal source information and coupling coefficients of antenna array and constructed cost function to estimate DOA,then took the advantages of DOA to estimate information of mutual coupling,so that two kinds of parameter estimations could be realized without any calibration sources and information of mutual coupling.Theoretical analysis and simulation results demonstrated that the proposed algorithm was of high accuracy and little computation.
作者 闵永生 罗景青 吴世龙
机构地区 解放军电子工程学院电子对抗信息处理重点实验室
出处 《探测与控制学报》 CSCD 北大核心 2011年第6期66-70,共5页 Journal of Detection & Control
关键词 均匀圆阵 方位估计 互耦 自校正 互耦系数 circular array DOA estimation mutual coupling self-calibration coupling coefficient
分类号 TN911.23 [电子电信—通信与信息系统]
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参考文献6

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共引文献42

同被引文献23

  • 1张浩,张志军,朱国军.采样数据重构的修正一维噪声子空间算法[J].电声技术,2006,30(11):4-6. 被引量：1
  • 2张志军,张浩,朱国军.阵列幅相误差影响下的一维噪声子空间算法[J].兵工自动化,2006,25(12):45-47. 被引量：1
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探测与控制学报
2011年 第6期

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