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Wideband time-reversal imaging of an elastic target in an acoustic waveguide.

Publication ,  Journal Article
Carin, L; Liu, H; Yoder, T; Couchman, L; Houston, B; Bucaro, J
Published in: The Journal of the Acoustical Society of America
January 2004

Time-reversal is addressed for imaging elastic targets situated in an acoustic waveguide. It is assumed that the target-sensor range is large relative to the channel depth. We investigate the theory of wideband time-reversal imaging of an extended elastic target, for which the target dimensions are large relative to the principal wavelengths. When performing time-reversal imaging one requires a forward model for propagation through the channel, and the quality of the resulting image may be used as a measure of the match between the modeled and actual (measured) channel parameters. It is demonstrated that the channel parameters associated with a given measurement may be determined via a genetic-algorithm (GA) search in parameter space, employing a cost function based on the time-reversal image quality. Example GA channel-parameter-inversion results and imagery are presented for measured at-sea data.

Duke Scholars

Published In

The Journal of the Acoustical Society of America

DOI

EISSN

1520-8524

ISSN

0001-4966

Publication Date

January 2004

Volume

115

Issue

1

Start / End Page

259 / 268

Related Subject Headings

  • Acoustics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Carin, L., Liu, H., Yoder, T., Couchman, L., Houston, B., & Bucaro, J. (2004). Wideband time-reversal imaging of an elastic target in an acoustic waveguide. The Journal of the Acoustical Society of America, 115(1), 259–268. https://doi.org/10.1121/1.1632482
Carin, Lawrence, Hongwei Liu, Timothy Yoder, Luise Couchman, Brian Houston, and Joseph Bucaro. “Wideband time-reversal imaging of an elastic target in an acoustic waveguide.The Journal of the Acoustical Society of America 115, no. 1 (January 2004): 259–68. https://doi.org/10.1121/1.1632482.
Carin L, Liu H, Yoder T, Couchman L, Houston B, Bucaro J. Wideband time-reversal imaging of an elastic target in an acoustic waveguide. The Journal of the Acoustical Society of America. 2004 Jan;115(1):259–68.
Carin, Lawrence, et al. “Wideband time-reversal imaging of an elastic target in an acoustic waveguide.The Journal of the Acoustical Society of America, vol. 115, no. 1, Jan. 2004, pp. 259–68. Epmc, doi:10.1121/1.1632482.
Carin L, Liu H, Yoder T, Couchman L, Houston B, Bucaro J. Wideband time-reversal imaging of an elastic target in an acoustic waveguide. The Journal of the Acoustical Society of America. 2004 Jan;115(1):259–268.

Published In

The Journal of the Acoustical Society of America

DOI

EISSN

1520-8524

ISSN

0001-4966

Publication Date

January 2004

Volume

115

Issue

1

Start / End Page

259 / 268

Related Subject Headings

  • Acoustics