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Proceedings Paper

Joint US-UK polarized lidar trial
Author(s): David M. Allocca; V. Michael Contarino; Linda J. Mullen; Geoff D. Ludbrook; Timothy Hamish Holloway
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Paper Abstract

Experiments with a blue-green laser radar system were conducted off the coasts of Ireland and Scotland in June, 1999. The purpose of this test was to measure the effect of the water optical properties on the polarization state and decay rate of the lidar return signal. The lidar system, the K-meter Survey System (KSS), was configured to transmit linearly polarized light and to receive cross-polarized light in one channel and both polarization in the other channel. Several oceanographic ground truth instruments were used to measure the water optical properties, including transmission, absorption, backscatter coefficient, diffuse attenuation, temperature and salinity, as a function of depth. The KSS was mounted on the bow of one of the UK survey vessels, the HMS Roebuck, and the oceanographic instruments were deployed with a deck-mounted winch. The results presented in this paper were obtained both inside and outside of the continental shelf. Since these regions were characterized by different water optical properties, the sensitivity of the lidar return signal in terms of decay rate and polarization to different water clarities was determined.

Paper Details

Date Published: 28 October 1999
PDF: 11 pages
Proc. SPIE 3761, Airborne and In-Water Underwater Imaging, (28 October 1999); doi: 10.1117/12.366480
Show Author Affiliations
David M. Allocca, Naval Air Warfare Ctr. (United States)
V. Michael Contarino, Naval Air Warfare Ctr. (United States)
Linda J. Mullen, Naval Air Warfare Ctr. (United States)
Geoff D. Ludbrook, Defence Evaluation and Research Agency Malvern (United Kingdom)
Timothy Hamish Holloway, Defence Evaluation and Research Agency Malvern (United Kingdom)

Published in SPIE Proceedings Vol. 3761:
Airborne and In-Water Underwater Imaging
Gary D. Gilbert, Editor(s)

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