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Multiaspect identification of submerged elastic targets via wave-based matching pursuits and hidden Markov models

Publication ,  Journal Article
Runkle, P; Carin, L; Couchman, L; Bucaro, JA; Yoder, TJ
Published in: Journal of the Acoustical Society of America
August 20, 1999

This paper investigates classification of submerged elastic targets using a sequence of backscattered acoustic signals corresponding to measurements at multiple target-sensor orientations. Wavefront and resonant features are extracted from each of the multiaspect signals using the method of matching pursuits, with a wave-based dictionary. A discrete hidden Markov model (HMM) is designed for each of the target classes under consideration, with identification of an unknown target effected by considering which model has the maximum likelihood of producing the observed sequence of feature vectors. HMMs are stochastic models which are well suited to describing piecewise-stationary processes, and are appropriate for multiaspect classification due to the strong aspect dependence of the scattered fields for most realistic targets. After establishing the physical and geometric correspondence between multiaspect sensing and the HMM parameters, performance is assessed through consideration of measured acoustic data from five similar submerged elastic targets. Results are presented with and without additive noise.

Duke Scholars

Published In

Journal of the Acoustical Society of America

DOI

ISSN

0001-4966

Publication Date

August 20, 1999

Volume

106

Issue

2

Start / End Page

605 / 616

Related Subject Headings

  • Acoustics
 

Citation

APA
Chicago
ICMJE
MLA
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Runkle, P., Carin, L., Couchman, L., Bucaro, J. A., & Yoder, T. J. (1999). Multiaspect identification of submerged elastic targets via wave-based matching pursuits and hidden Markov models. Journal of the Acoustical Society of America, 106(2), 605–616. https://doi.org/10.1121/1.427029
Runkle, P., L. Carin, L. Couchman, J. A. Bucaro, and T. J. Yoder. “Multiaspect identification of submerged elastic targets via wave-based matching pursuits and hidden Markov models.” Journal of the Acoustical Society of America 106, no. 2 (August 20, 1999): 605–16. https://doi.org/10.1121/1.427029.
Runkle P, Carin L, Couchman L, Bucaro JA, Yoder TJ. Multiaspect identification of submerged elastic targets via wave-based matching pursuits and hidden Markov models. Journal of the Acoustical Society of America. 1999 Aug 20;106(2):605–16.
Runkle, P., et al. “Multiaspect identification of submerged elastic targets via wave-based matching pursuits and hidden Markov models.” Journal of the Acoustical Society of America, vol. 106, no. 2, Aug. 1999, pp. 605–16. Scopus, doi:10.1121/1.427029.
Runkle P, Carin L, Couchman L, Bucaro JA, Yoder TJ. Multiaspect identification of submerged elastic targets via wave-based matching pursuits and hidden Markov models. Journal of the Acoustical Society of America. 1999 Aug 20;106(2):605–616.

Published In

Journal of the Acoustical Society of America

DOI

ISSN

0001-4966

Publication Date

August 20, 1999

Volume

106

Issue

2

Start / End Page

605 / 616

Related Subject Headings

  • Acoustics