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Super-resolution in time-reversal acoustics

Publication ,  Journal Article
Blomgren, P; Papanicolaou, G; Zhao, H
Published in: The Journal of the Acoustical Society of America
January 1, 2002

The phenomenon of super-resolution in time-reversal acoustics is analyzed theoretically and with numerical simulations. A signal that is recorded and then retransmitted by an array of transducers, propagates back though the medium, and refocuses approximately on the source that emitted it. In a homogeneous medium, the refocusing resolution of the time-reversed signal is limited by diffraction. When the medium has random inhomogeneities the resolution of the refocused signal can in some circumstances beat the diffraction limit. This is super-resolution. A theoretical treatment of this phenomenon is given, and numerical simulations which confirm the theory are presented.

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Published In

The Journal of the Acoustical Society of America

DOI

EISSN

1520-8524

ISSN

0001-4966

Publication Date

January 1, 2002

Volume

111

Issue

1

Start / End Page

230 / 248

Publisher

Acoustical Society of America (ASA)

Related Subject Headings

  • Acoustics
 

Citation

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Chicago
ICMJE
MLA
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Blomgren, P., Papanicolaou, G., & Zhao, H. (2002). Super-resolution in time-reversal acoustics. The Journal of the Acoustical Society of America, 111(1), 230–248. https://doi.org/10.1121/1.1421342
Blomgren, Peter, George Papanicolaou, and Hongkai Zhao. “Super-resolution in time-reversal acoustics.” The Journal of the Acoustical Society of America 111, no. 1 (January 1, 2002): 230–48. https://doi.org/10.1121/1.1421342.
Blomgren P, Papanicolaou G, Zhao H. Super-resolution in time-reversal acoustics. The Journal of the Acoustical Society of America. 2002 Jan 1;111(1):230–48.
Blomgren, Peter, et al. “Super-resolution in time-reversal acoustics.” The Journal of the Acoustical Society of America, vol. 111, no. 1, Acoustical Society of America (ASA), Jan. 2002, pp. 230–48. Crossref, doi:10.1121/1.1421342.
Blomgren P, Papanicolaou G, Zhao H. Super-resolution in time-reversal acoustics. The Journal of the Acoustical Society of America. Acoustical Society of America (ASA); 2002 Jan 1;111(1):230–248.

Published In

The Journal of the Acoustical Society of America

DOI

EISSN

1520-8524

ISSN

0001-4966

Publication Date

January 1, 2002

Volume

111

Issue

1

Start / End Page

230 / 248

Publisher

Acoustical Society of America (ASA)

Related Subject Headings

  • Acoustics