Publications [#339026] of Lawrence Carin

Papers Published

1. Dong, Y; Runkle, P; Carin, L, Markov modeling of transient scattering and its application in multi-aspect target classification, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 5 (January, 2001), pp. 2841-2844, Salt Lake, UT [ICASSP.2001.940238]
   (last updated on 2024/12/31)

   Abstract:
   Transient scattered fields from a general target are composed of wavefronts, resonances and time delays, with these constituents linked to the target geometry. A classifier applied transient scattering data requires a statistical model for such fundamental constituents. A Markov model is employed to characterized the transient scattered fields - for a set of target-sensor orientation over which the transient scattering is stationary - utilizing a wavefront, resonance, time-delay "alphabet". The Markov model is utilized in a classifier developed for multi-aspect transient scattering data, with a hidden Markov model (HMM) employed to address the generally non-stationary nature of the multi-aspect waveforms. Each state of the HMM is characteristic of a set of target-sensor orientations for which the scattering statistics are stationary, the statistics of which are characterized via the aforementioned Markov model. The wavefront, resonance and time-delay features are extracted via a modified matching-pursuits algorithm.

   Keywords:
   Mathematical models;Markov processes;Electromagnetic wave scattering;Wavefronts;Resonance;Statistical methods;Feature extraction;Pattern matching;Algorithms;