Model for joint consideration of turbulent distortions and aerosol scattering in coherent and incoherent object imaging
V.V. Dudorov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: некогерентное изображение, лазерная подсветка, атмосферная турбулентность, аэрозольное рассеяние, incoherent image, laser illumination, atmospheric turbulence, aerosol scattering
Abstract
A technique is suggested for the joint consideration of turbulent (refraction) and aerosol (scattering) distortions when imaging laser illuminated objects. The technique is based on the joint solution of the parabolic equation and the radiation transfer equation by the split-step method. Turbulent distortions are simulated with the common phase screen method. The aerosol scattering simulation is based on the division of the object-observer distance to a certain number of statistically independent scattering layers, for each of which coherent (for forward scattering) and incoherent (for forward and back scattering) components of the scattered field are formed in the single-scattering approximation. The results of simulation of coherent and incoherent images of a laser radiation illuminated object are presented.
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