Abstract

Monte Carlo methods, used in calculations of the received power in transmissions of collimated light beams through a turbid atmosphere in a multiple-scattering regime, present a shortcoming because of the length of computer time necessary to obtain reliable results. We show how the introduction of two scaling formulas makes a substantial reduction of calculation time possible, since situations differing through the values of some geometrical parameters do not require separate treatment. Two versions of the scaling formulas are presented. The simpler one can be applied when the scattering function of the medium has a high forward peak, so that one can assume that only small scattering angles are important. The second form of the scaling formula can be applied in cases when small-angle assumption is not adequate.

© 1985 Optical Society of America

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