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Dual hidden Markov model characterization of wavelet coefficients from multi-aspect scattering data

Journal articles
Dasgupta, N; Runkle, P; Couchman, L; Carin, L
Published in: Proceedings of SPIE the International Society for Optical Engineering
January 1, 2000
Published version (DOI)

We consider angle-dependent scattering (electromagnetic or acoustic) from a general target, for which the scattered signal is a non-stationary function of the target-sensor orientation. A statistical model is presented for the wavelet coefficients of such a signal, in which the angular non-stationary is characterized by an 'outer' hidden Markov model (HMMo). The statistics of the wavelet coefficients, within a state of the outer HMM, are characterized by a second, 'inner' HMM (HMMi), exploiting the tree structure of the wavelet decomposition. This dual-HMM construct is demonstrated by considering multi-aspect target identification using measured acoustic scattering data.

Duke Scholars

Lawrence Carin
Author Lawrence Carin Pierre R. Lamond Department of Electrical and Computer Engin ...
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Published In

Proceedings of SPIE the International Society for Optical Engineering

DOI

10.1117/12.396179

ISSN

0277-786X

Publication Date

January 1, 2000

Volume

4038 (II)

Start / End Page

954 / 965

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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Dasgupta, N., Runkle, P., Couchman, L., & Carin, L. (2000). Dual hidden Markov model characterization of wavelet coefficients from multi-aspect scattering data. Proceedings of SPIE the International Society for Optical Engineering, 4038 (II), 954–965. https://doi.org/10.1117/12.396179
Dasgupta, N., P. Runkle, L. Couchman, and L. Carin. “Dual hidden Markov model characterization of wavelet coefficients from multi-aspect scattering data.” Proceedings of SPIE the International Society for Optical Engineering 4038 (II) (January 1, 2000): 954–65. https://doi.org/10.1117/12.396179.
Dasgupta N, Runkle P, Couchman L, Carin L. Dual hidden Markov model characterization of wavelet coefficients from multi-aspect scattering data. Proceedings of SPIE the International Society for Optical Engineering. 2000 Jan 1;4038 (II):954–65.
Dasgupta, N., et al. “Dual hidden Markov model characterization of wavelet coefficients from multi-aspect scattering data.” Proceedings of SPIE the International Society for Optical Engineering, vol. 4038 (II), Jan. 2000, pp. 954–65. Scopus, doi:10.1117/12.396179.
Dasgupta N, Runkle P, Couchman L, Carin L. Dual hidden Markov model characterization of wavelet coefficients from multi-aspect scattering data. Proceedings of SPIE the International Society for Optical Engineering. 2000 Jan 1;4038 (II):954–965.

Published In

Proceedings of SPIE the International Society for Optical Engineering

DOI

10.1117/12.396179

ISSN

0277-786X

Publication Date

January 1, 2000

Volume

4038 (II)

Start / End Page

954 / 965

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering