Near-field sources localization based on co-prime symmetric array

被引：0

作者：

Liang, Guo-Long ^{[1
]}

Han, Bo ^{[1
]}

机构：

[1] Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University

来源：

Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2014年 / 36卷 / 01期

关键词：

Array processing; Co-prime symmetric array; Cumulant; Near-field; Signal processing; Sources localization;

D O I：

10.3724/SP.J.1146.2013.00756

中图分类号：

TN911 [通信理论];

学科分类号：

081002 ;

摘要：

For the issue of aperture loss appears when localizing near-field sources, a novel near-field source localization algorithm is presented. The algorithm is based on the co-prime symmetric array, thus the intersensor spacing need not be limited to quarter-wavelength. First, a special fourth-order cumulant matrix is constructed to estimate the azimuth angles of sources by the MUSIC algorithm. Second, the range parameters of sources can be obtained by searching the spectral peak with each estimated bearing angle. The algorithm transforms the two-dimensional localization issue into several one-dimensional searching issue, and the parameters are automatically paired. The array aperture is extended by using co-prime symmetric, and the algorithm improves the spatial resolution and parameters estimated performance. Simulation results verify the effectiveness of the proposed algorithm.

引用

页码：135 / 139

页数：4

共 16 条

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