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Proceedings Paper

Wide-angle ladar for dense scattering media
Author(s): Gennadii G. Matvienko; Vladimir V. Belov; Viktor S. Belousov; Boris D. Borisov; Mikhail I. Kyriachii; Ivan N. Pystinskii
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Paper Abstract

Characteristics of object images observed through scattering media with an active vision system with wide receiving angle operating in the mode of spatial selection are estimated using the Monte Carlo method. The effect of optical and geometrical conditions of observation on the contrast in images of reflecting objects is considered. Interpretation is given to the obtained dependences. The main results obtained in this work are the following. A suit of programs of the Monte Carlo method has been developed for statistical simulation of the imaging process in pulsed active vision systems with spatial selection. In the framework of the considered formulation of the problem, the contrast of the object image against the scattered background and the surface lying under the observation path exceeds the level of 0.8 up to the optical depth of the medium τ ≈ 4 and exceeds 0.4 up to τ ≈ 5. The process of multiple scattering determines, to the significant degree, not only the backscattering, but also the useful signal and, in particular, the intensity of the non-scattered radiation reflected by the object and recorded by the receiver. The sample of the ladar for car application was created and got testing.

Paper Details

Date Published: 4 November 2004
PDF: 10 pages
Proc. SPIE 5575, Laser Radar Techniques for Atmospheric Sensing, (4 November 2004); doi: 10.1117/12.565998
Show Author Affiliations
Gennadii G. Matvienko, Institute of Atmospheric Optics (Russia)
Vladimir V. Belov, Institute of Atmospheric Optics (Russia)
Viktor S. Belousov, Institute of Atmospheric Optics (Russia)
Boris D. Borisov, Institute of Atmospheric Optics (Russia)
Mikhail I. Kyriachii, Tomsk State Univ. of Control Systems and Radioelectronics (Russia)
Ivan N. Pystinskii, Tomsk State Univ. of Control Systems and Radioelectronics (Russia)

Published in SPIE Proceedings Vol. 5575:
Laser Radar Techniques for Atmospheric Sensing
Upendra N. Singh, Editor(s)

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