Sparse Nested Array Design for Virtual Aperture Extension

被引：0
|
作者：
Yan S. [1 ]
机构：
[1] School of Information and Electronics, Beijing Institute of Technology, Beijing
来源：
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | 2021年 / 41卷 / 01期
关键词：
Degree of freedom; DOA estimation; Sparse nested array;
D O I：
10.15918/j.tbit1001-0645.2019.282
中图分类号：
学科分类号：
摘要：
A sparse nested array concept of distributing the right-side elements of two level augmented nested array (ANA) sparsely was proposed for degree of freedom (DOF) enhancement. The new strategy was arranged to make the distances between the right-side elements and the right most sensor in the middle subarray of ANA larger than N1 to extend the furthest aperture successfully. In order to keep the continuity of virtual aperture, a new nested array, referred to as one side sparse nested array (OS-SNA), was proposed. Compared with the improved nested array ANAI-2 and maximum inter-element spacing constraint (MISC), the new nested array can generate more consecutive lags. Simulation results show the superiorities of the proposed OS-SNA in DOF and the precision estimation. © 2021, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
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页码：79 / 83
页数：4
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