| 基于介质顶阵的到达角估计 |
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| 引用本文： | 柴舜连,姚德淼,毛钧杰.基于介质顶阵的到达角估计[J].电子与信息学报,1998,20(5):619-624. |
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| 作者姓名： | 柴舜连 姚德淼 毛钧杰 |
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| 作者单位： | 国防科技大学电子工程学院，国防科技大学电子工程学院，国防科技大学电子工程学院 长沙 410073，长沙 410073，长沙 410073 |
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| 摘 要： | 由于介质顶对来波的发散作用,到达平面阵的波是非平面波。本文研究基于介质顶阵的到达角(DOA)估计方法。通过对采样协方差矩阵进行远场近似(FFA)处理,用高分辨特征结构技术(MUSIc算法)进行DOA估计,得到了比较好的结果。计算机模拟结果证实了该方法的有效性。
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| 关 键 词： | DOA估计 MUSIC算法 介质顶阵 |
| 收稿时间： | 1997-6-17 |
| 修稿时间： | 1998-1-4 |
DOA ESTIMATION BASED ON DIELECTRIC DOME ARRAY |
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| Chai Shunlian,Yao Demiao,Mao Junjie.DOA ESTIMATION BASED ON DIELECTRIC DOME ARRAY[J].Journal of Electronics & Information Technology,1998,20(5):619-624. |
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| Authors: | Chai Shunlian Yao Demiao Mao Junjie |
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| Affiliation: | National University of Defence Technology Changsha 410073 |
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| Abstract: | The performance of DOA estimation will be distorted in the presence of dielectric dome in the Dielectric Dome Array(DDA) because the dielectric dome diverges the planar wave-front into non-planar wavefront inside it. This paper proposes a Far Field Approximation(FFA) method to improve the performance based on DDA. This method first reconstructs a FFA Co-variance matrix, which is Toplitz and approximates to the far field data covariance matrix, and then the high-resolution eigenstructure techniques can be utilized to estimate the DOAs without revising the planar wavefont assumption. Simulation results confirm the theoretical work. |
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| Keywords: | DOA estimation MUSIC algthom Dielectric Dome Array(DDA) |
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