Passive Localization of Near-Field Sources Based on Overlapped Subarrays

被引：0
作者：
Jie Sun
Caiyong Hao
Zhi Zheng
机构：
[1] University of Electronic Science and Technology of China (UESTC),School of Information and Communication Engineering
[2] Institute of Electronic and Information Engineering of UESTC in Guangdong,undefined
[3] Shenzhen Station of State Radio Monitoring Center,undefined
来源：
Circuits, Systems, and Signal Processing | 2020年 / 39卷
关键词：
Source localization; Far-field; Near-field; Overlapped subarrays;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, a new algorithm for near-field source localization is proposed based on a uniform linear array (ULA). First, the direction-of-arrivals (DOAs) of near-field sources at two symmetric phase points are obtained by using two overlapped subarrays of the ULA and second-order statistics-based method. Next, the DOA of each source at the phase origin is determined by exploiting the geometric relationships between the source and two phase points. Finally, with the DOA estimates, the ranges of near-field sources can be estimated by one-dimensional search. The proposed method involves neither two-dimensional search nor higher-order cumulant calculations and avoids parameter pair-matching process. Moreover, it can achieve higher accuracy than the existing efficient method. Numerical simulations are presented to verify the performance of the proposed method.
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页码：502 / 512
页数：10
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