Time reversal reconstruction of finite sized sources in elastic media | Zendy

Brian E. Anderson | Zendy; Michele Griffa | Zendy; Timothy J. Ulrich | Zendy; Paul A. Johnson | Zendy

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Time reversal reconstruction of finite sized sources in elastic media

Author(s) -

Brian E. Anderson,

Michele Griffa,

Timothy J. Ulrich,

Paul A. Johnson

Publication year - 2011

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3635378

Subject(s) - wavelength , quality (philosophy) , process (computing) , source model , optics , acoustics , physics , computer science , computational physics , quantum mechanics , operating system

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.

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