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Scintillation of a Ground-to-Space Laser Illuminator

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Abstract

The problem of scintillation of a laser beam because of atmospheric turbulence, which has previously-been studied for a horizontal propagation path, is studied in this paper for a path from a ground-based transmitter to a measurement point in space. The results are presented in terms of the log-amplitude variance Cl(0), from which the intensity variance can be computed. The log-amplitude variance is found to be separable into a strength factor Cls(0) associated with the use of a zero-diameter source, and an aperture factor which measures the reduction of Cl(0) caused by use of a large-aperture transmitter. Values of the aperture factor are calculated.

© 1967 Optical Society of America

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Equations (18)

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