| 阵列模型误差条件下稳健的DOA估计算法 |
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| 引用本文： | 郭艺夺,张永顺,童宁宁,宫健.阵列模型误差条件下稳健的DOA估计算法[J].上海航天,2010,27(1):31-35. |
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| 作者姓名： | 郭艺夺 张永顺 童宁宁 宫健 |
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| 作者单位： | 空军工程大学导弹学院,陕西,三原,713800 |
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| 摘 要： | 为改善阵列误差时高分辨到达方向(DOA)估计算法的性能,引入精确校正的辅助阵元,应用子空间原理,提出了一种均匀线阵存在阵列误差条件下鲁棒DOA估计及方位依赖的幅相误差矩阵和互耦矩阵的估计算法。算法的方位估计无需任何阵列误差信息,估计精度高、分辨力强,且基于信源方位的精确估计,算法还可精确估计方位依赖的幅相误差矩阵和互耦矩阵,实现阵列误差的自校正。算法的运算量较小,无需高维非线性优化搜索,只需一维搜索。仿真结果证明了算法的正确性和有效性。
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| 关 键 词： | 阵列误差 DOA估计 稳健性 MUSIC算法 |
Robust DOA Estimation Algorithm in the Presence of Array Uncertainty |
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| GUO Yi-duo,ZHANG Yong-shun,TONG Ning-ning,GONG Jian.Robust DOA Estimation Algorithm in the Presence of Array Uncertainty[J].Aerospace Shanghai,2010,27(1):31-35. |
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| Authors: | GUO Yi-duo ZHANG Yong-shun TONG Ning-ning GONG Jian |
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| Institution: | GUO Yi-duo,ZHANG Yong-shun,TONG Ning-ning,GONG Jian(The Missile Institute of Air Force Engineering University,Sanyuan Shaanxi,713800) |
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| Abstract: | Many classical direction of arrival(DOA) estimation algorithm s suffer from sensitivity to array uncertainty. To improve the performance of direction of arrival estimation algorithm with array error,a robust subspace-based DOA estimation algorithm that used some carry-on instrumental sensors in the presence of array uncertainty was proposed for uniform linear array(ULA) in this paper.A favorable DOA estimation could be reached and no knowledge of the array uncertainty was exploited for the new algorithm.An ... |
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| Keywords: | Array uncertainty DOA estimation Robustness MUSIC algorithm |
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