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Sparse representation-based method for two-dimensional direction-of-arrival estimation with L-shaped array

机译:L形阵列的二维到达方向估计的稀疏表示方法

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摘要

A novel sparse representation-based method for two-dimensional (2-D) direction-of-arrival (DOA) estimation with L-shaped array is proposed. In our method, the 2-D DOA estimation is cast as a reconstituted problem of sparse matrix. The model for sparse-matrix reconstitution is first presented based on the cross-correlation matrix. Then an extended orthogonal matching pursuit (EOMP) algorithm is put forward to reconstitute the sparse matrix. With the use of the model for sparse-matrix reconstitution and EOMP algorithm, pair matching is no longer required in our method, and the estimation accuracy of our method is higher than the existing subspace-based and sparse representation-based methods. The simulation results demonstrate the effectiveness and efficiency of the proposed method.
机译:提出了一种新的基于稀疏表示的L形阵列二维到达方向估计方法。在我们的方法中,二维DOA估计被转换为稀疏矩阵的重构问题。首先基于互相关矩阵提出了稀疏矩阵重构模型。提出了一种扩展的正交匹配追踪(EOMP)算法来重构稀疏矩阵。通过使用该模型进行稀疏矩阵重构和EOMP算法,我们的方法不再需要配对匹配,并且该方法的估计精度高于现有的基于子空间和基于稀疏表示的方法。仿真结果证明了该方法的有效性和有效性。

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