Title :
Time-reversal imaging for wideband underwater target classification
Author :
Liu, Hongwei ; Dasgupta, Nilanjan ; Carin, Lawrence
Author_Institution :
Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA
Abstract :
Time-reversal imaging is addressed for sensing an elastic target situated in an acoustic waveguide. It is demonstrated that the channel parameters associated with a given measurement may be determined via a genetic-algorithm (GA) search in parameter space. Target classification based on time-reversal imagery is considered, with this implemented via a relevance-vector machine.
Keywords :
acoustic imaging; acoustic signal processing; acoustic waveguides; feature extraction; genetic algorithms; image classification; learning automata; underwater sound; GA search; acoustic waveguide; channel parameters; elastic target; feature extraction; genetic-algorithm search; relevance-vector machine; time-reversal imaging; wideband underwater target classification; Acoustic imaging; Acoustic scattering; Acoustic signal detection; Acoustic waveguides; Acoustic waves; Signal processing algorithms; Transmission line measurements; Underwater acoustics; Underwater tracking; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1199853
