A Physical Model for Strong Optical Amplitude Fluctuations in a Turbulent Medium,
AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS
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In the paper a heuristic derivation of the amplitude statistics of a plane wave propagating in a turbulent medium is given. The results are based on a generalization of Tatarskiis geometrical optics model of amplotude fluctuations. For this reason, the results given are to be regarded as an order of magnitude estimate, rather than a rigorous quantitative derivation. The purpose here is to correctly describe the physical optic effects rather than be mathematically rigourous, hence, all multiplicative factors of the order unity are neglected. As is shown, good qualitative agreement with experimental measurements of amplitude statistics is obtained for both variance and covariance measurements.