Publications [#339048] of Lawrence Carin

Papers Published

1. 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, vol. 4038 (II) (January, 2000), pp. 954-965, Orlando, FL, USA [12.396179], [doi]
   (last updated on 2024/12/31)

   Abstract:
   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.

   Keywords:
   Mathematical models;Markov processes;Wavelet transforms;Sensors;Electromagnetic field effects;Bombs (ordnance);Probability;Algorithms;