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Proceedings Paper

The effect of dense aerosol cloud on the 3D information contain of flash Lidar
Author(s): Grégoire Tremblay; Xiaoying Cao; Gilles Roy
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Paper Abstract

A laser pulse propagating through dense clouds suffers from spatial and temporal distortion caused by multiple scattering of light. Both distortions are function of the optical depth, the particle size of the aerosols and the cloud distance relative to the target and receiver. In order to study the effects of all theses parameters, 3-D Monte-Carlo (MC) simulations were performed. The Monte Carlo developed for this purpose has the unique capability to produce both 2D and 3D images of the scenes. For the 2D images we calculated the MTF using the Fourier transform of the system PSF. For the 3D images gratings with rectangular grooves of various frequencies and height were used and the concept of contrast applied as for the calculation of MTF for 2 D images. We found that 3D temporal distortion effects are significantly reduced when the reconnaissance algorithm is base on the shape of the raising pulse.

Paper Details

Date Published: 11 October 2010
PDF: 12 pages
Proc. SPIE 7828, Optics in Atmospheric Propagation and Adaptive Systems XIII, 78280C (11 October 2010); doi: 10.1117/12.864739
Show Author Affiliations
Grégoire Tremblay, AEREX avionique inc. (Canada)
Xiaoying Cao, Royal Military College of Canada (Canada)
Gilles Roy, Defence Research and Development Canada (Canada)

Published in SPIE Proceedings Vol. 7828:
Optics in Atmospheric Propagation and Adaptive Systems XIII
Karin Stein; John D. Gonglewski, Editor(s)

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