DOA estimation of mixed coherent and uncorrelated signals exploiting a nested MIMO system
DOA estimation of mixed coherent and uncorrelated signals exploiting a nested MIMO system
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DOI：
10.1109/benmas.2014.7529468
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发表时间：
2014-09
期刊：
影响因子：
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通讯作者：
Si Qin;Yimin D. Zhang;M. Amin
中科院分区：
文献类型：
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作者：
Si Qin;Yimin D. Zhang;M. Amin
提出了一种利用嵌套多输入多输出（MIMO）系统估计相干和不相关混合信号到达方向的新方案。在所提出的方案中，首先使用基于子空间的方法估计不相关源的波达方向，而使用压缩感知技术求解相干源的波达方向。所提出的方法适用于非均匀线性和协阵，可以解决更多的来源比协阵元素的数量。
We propose a new scheme to estimate the directions-of-arrival of mixed coherent and uncorrelated signals exploiting a nested multiple-input multiple-output (MIMO) system. In the proposed scheme, the DOAs of the uncorrelated sources are first estimated using subspace-based methods, whereas those of the coherent sources are resolved using compressive sensing techniques. The proposed approach works for nonuniform linear sum coarrays and may resolve more sources than the number of coarray elements.