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3-D Mixed Far-field and Near-field Sources Localization with Cross Array
IEEE Transactions on Vehicular Technology ( IF 6.8 ) Pub Date : 2020-06-01 , DOI: 10.1109/tvt.2020.2985903
Xiaohuan Wu , Jun Yan

This correspondence proposes a localization method for mixed far-field (FF) and near-field (NF) sources based on cross arrays where two-dimensional (2-D) direction-of-arrival (DOA) and range estimation are considered. For 2-D DOA estimation, we first construct a range-free cumulant-based vector and employ the covariance matching criterion and Vandermonde decomposition theorem to retrieve DOA information. We then build a sparse model with respect to range parameter and solve an $\ell _1$-norm minimization problem to obtain range estimates. Our method enjoys the following advantages: 1) our method can locate mixed FF and NF sources; 2) the azimuth, elevation and range can be automatically paired; 3) array aperture loss can be avoided. Simulation results show the effectiveness of our method.

中文翻译:

具有交叉阵列的 3-D 混合远场和近场源定位

这种对应关系提出了一种基于交叉阵列的混合远场 (FF) 和近场 (NF) 源的定位方法,其中考虑了二维 (2-D) 到达方向 (DOA) 和距离估计。对于二维 DOA 估计,我们首先构造一个基于范围的累积量向量,并采用协方差匹配标准和 Vandermonde 分解定理来检索 DOA 信息。然后我们建立一个关于范围参数的稀疏模型并解决 $\ell_1$-norm 最小化问题以获得范围估计。我们的方法具有以下优点:1)我们的方法可以定位混合的 FF 和 NF 源;2)方位角、仰角、距离可自动配对;3)可以避免阵列孔径损失。仿真结果表明了我们方法的有效性。
更新日期:2020-06-01
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