首页> 外文会议>2011 19th Iranian Conference on Electrical Engineering >A novel array geometry to improve DOA estimation of narrowband sources at the angles close to the array endfire
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A novel array geometry to improve DOA estimation of narrowband sources at the angles close to the array endfire

机译:一种新颖的阵列几何形状,可在接近阵列端火的角度改善窄带源的DOA估计

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This article proposes a new geometry to improve the Direction Of Arrival (DOA) estimation of narrowband sources arriving at directions close to the array endfires. This configuration adds two elements to the (N-2)-element Uniform Linear Array (ULA), so the size and computational load of the Proposed Array (PA) is identical to that of N-element ULA, while DOA estimation accuracy and angular resolution are higher for narrowband signals arriving at directions close the array endfires. In this investigation, two popular DOA estimation algorithms, MUSIC and MVDR, are applied to the proposed array and ULA. Simulation results show that PA has better accuracy and resolution than ULA with the same element number. Some other similar configurations are also examined and have shown better DOA estimation performance at endfire directions.
机译:本文提出了一种新的几何结构,以改善到达接近阵列端火方向的窄带源的到达方向(DOA)估计。此配置在(N-2)个元素均匀线性阵列(ULA)中添加了两个元素,因此建议阵列(PA)的大小和计算负荷与N个元素ULA相同,而DOA估计的准确性和角度对于到达接近阵列端火方向的窄带信号,分辨率更高。在这项研究中,两种流行的DOA估计算法MUSIC和MVDR被应用于所提出的阵列和ULA。仿真结果表明,在相同元素数量的情况下,PA的精度和分辨率优于ULA。还检查了一些其他类似的配置,这些配置在端火方向上显示了更好的DOA估计性能。

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