Improving underwater imaging in an amplitude-modulated laser system with radio frequency control technique

L. De Dominicis; M. Ferri de Collibus; G. Fornetti; M. Guarneri; M. Nuvoli; R. Ricci; M. Francucci

doi:10.2971/jeos.2010.10004

Journal of the European Optical Society - Rapid publications, Vol 5 (2010)

Improving underwater imaging in an amplitude-modulated laser system with radio frequency control technique

L. De Dominicis, M. Ferri de Collibus, G. Fornetti, M. Guarneri, M. Nuvoli, R. Ricci, M. Francucci

Abstract

We present the results of an experiment aimed to demonstrate the low-pass filter dependence of water backscattered power in an amplitude-modulated laser scanner for underwater 3D imaging. We also demonstrate that improvements in target imaging are obtained by allowing the device to operate in the stop-band region. A simple model is described to account for the physics underlying the effect and suggesting future experimental schemes based on demodulated detection techniques.

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