| 基于双L型阵的二维测向算法 |
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| 引用本文： | 甘露,彭晓燕,魏平,李明.基于双L型阵的二维测向算法[J].电波科学学报,2010(5). |
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| 作者姓名： | 甘露 彭晓燕 魏平 李明 |
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| 作者单位： | 电子科技大学电子工程学院;中国电子科技集团第十研究所; |
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| 摘 要： | 提出了一种基于双L型阵的二维测向算法。通过定义新的三维波达方向角,同时利用旋转不变算法获得每一维入射角的独立估计,再由波达方向角之间的约束关系进行配对,提高了测向精度与二维角成功配对概率,改善了双L阵二维测向精度对来波方向敏感的问题。计算机仿真结果表明:所提算法在观测的区域内均具有较高测向精度,特别是在仰角较小时较传统算法其测向精度有较大提高,在低信噪比情况下与传统算法比较提高了二维测向中的角度配对成功概率。
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| 关 键 词： | 方向余弦 测向 估计精度 配对 双L型阵 |
2-D direction finding algorithm based on two L-shape arrays |
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| GAN Lu PENG Xiaoyan WEI Ping LI Ming.2-D direction finding algorithm based on two L-shape arrays[J].Chinese Journal of Radio Science,2010(5). |
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| Authors: | GAN Lu PENG Xiaoyan WEI Ping LI Ming |
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| Institution: | GAN Lu1 PENG Xiaoyan1 WEI Ping1 LI Ming2(1.School of Electronics Engineering,University of Electronic Science Technology of China,Chengdu Sichuan 610054,China,2.The 10th Research Institute of CETC,Chengdu Sichuan 610036,China) |
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| Abstract: | This paper presents a novel method of two-dimensional(2-D) direction finding based on two L-shape arrays.A new type of three-dimensional(3-D) direction angles has been defined in this method.The angles along each coordinate axis are estimated via rotational invariance techniques(ESPRIT) of uniform linear array(ULA).All estimated angles get pair-matched by spatial relationships of their direction cosines.Simulation results show that the proposed method has good performance in the observation range,higher est... |
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| Keywords: | direction cosine direction finding estimated accuracy pair-matching two L-shape array |
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