Ray-based blind deconvolution of shipping sources using single-snapshot adaptive beamforming

被引：3

作者：

Zhang, Xuedong ^{[1
,3
]}

Yang, Juan ^{[1
,3
]}

Sabra, Karim ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Acoust, Beijing 100190, Peoples R China

[2] Georgia Inst Technol, Sch Mech Engn, Atlanta, GA 30332 USA

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2020年 / 147卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1121/10.0000709

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The original ray-based blind deconvolution (RBD) algorithm estimates the phase of a source of opportunity-e.g., a shipping vessel-using conventional wideband beamforming (CWBF) along a well-resolved ray-path to estimate the channel impulse response (CIR). However, for the case of an anisotropic radiator and when using a short-aperture receiving array, CWBF is unable to accurately beamform on weak multipath arrivals. Instead, a higher-resolution RBD algorithm based on single snapshot adaptive beamforming is introduced by using space-frequency smoothing of the array covariance matrix; and its performance is demonstrated using experimental recordings of a container vessel to estimate the bottom-bounce arrival of the CIR.

引用

页码：EL106 / EL112

页数：7

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