的个人主页 http://faculty.nuaa.edu.cn/xiaofeizhang/zh_CN/index.htm
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所属单位:电子信息工程学院
发表刊物:IEEE ACCESS
关键字:Direction of arrival (DOA) compressed sensing frequency parallel factor (PARAFAC) L-shaped array
摘要:In this paper, we combine the compressed sensing theory with the parallel factor (PARAFAC) model to present a 2-D direction of arrival (2D-DOA) and a frequency estimation algorithm for an L-shaped array. We first build the multi-delay outputs data as the PARAFAC model, then compress it with partitioning and perform the PARAFAC decomposition through a trilinear alternating least square algorithm. Finally, we reconstruct the received data with sparsity to obtain the automatically paired 2D-DOA and frequency. The proposed algorithm is effective for both uniform and non-uniform L-shaped array, and owing to the compression process, it holds the properties of lower computational complexity and smaller capacity for data storage, compared with a traditional PARAFAC algorithm. The angle and frequency estimation performance of the proposed algorithm is close to the traditional PARAFAC method, and outperforms the estimating signal parameters via a rotational invariance techniques algorithm and a propagator method. Simulation results verify the effectiveness and superiority of our approach.
ISSN号:2169-3536
是否译文:否
发表时间:2018-01-01
合写作者:徐乐,Wu, Riheng,Shi, Zhan
通讯作者:Wu, Riheng,张小飞