Time reversal reconstruction of finite sized sources in elastic media

被引：22

作者：

Anderson, Brian E. ^{[1
]}

Griffa, Michele ^{[2
]}

Ulrich, Timothy J. ^{[3
]}

Johnson, Paul A. ^{[3
]}

机构：

[1] Brigham Young Univ, Dept Phys & Astron, Acoust Res Grp, Eyring Sci Ctr N283, Provo, UT 84602 USA

[2] EMPA, Lab Bldg Sci & Technol, Swiss Fed Labs Mat Sci & Technol, CH-8600 Dubendorf, Switzerland

[3] Los Alamos Natl Lab, Solid Earth Geophys Grp EES 17, Los Alamos, NM 87545 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2011年 / 130卷 / 04期

关键词：

D O I：

10.1121/1.3635378

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The ability of the time reversal process to reconstruct sources of finite size relative to a wavelength is investigated. Specifically the quality of the spatial reconstruction of a finite sized source will be presented through the use of time reversal experiments conducted on an aluminum plate. The data presented in the paper show that time reversal can reconstruct a source equally well regarding less of its size, when the source is a half wavelength or less in size. The quality of spatial reconstruction when the source is larger than a half wavelength progressively decreases with the size of the source. (C) 2011 Acoustical Society of America

引用

页码：EL219 / EL225

页数：7

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