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4 November 2004 Wide-angle ladar for dense scattering media
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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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gennadii G. Matvienko, Vladimir V. Belov, Viktor S. Belousov, Boris D. Borisov, Mikhail I. Kyriachii, and Ivan N. Pystinskii "Wide-angle ladar for dense scattering media", Proc. SPIE 5575, Laser Radar Techniques for Atmospheric Sensing, (4 November 2004); https://doi.org/10.1117/12.565998
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