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Characterizing the propagation path in moderate to strong optical turbulence

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Abstract

In February 2005 a joint atmospheric propagation experiment was conducted between the Australian Defence Science and Technology Organisation and the University of Central Florida. A Gaussian beam was propagated along a horizontal 1500  m path near the ground. Scintillation was measured simultaneously at three receivers of diameters 1, 5, and 13  mm. Scintillation theory combined with a numerical scheme was used to infer the structure constant Cn2, the inner scale l0, and the outer scale L0 from the optical measurements. At the same time, Cn2 measurements were taken by a commercial scintillometer, set up parallel to the optical path. The Cn2 values from the inferred scheme and the commercial scintillometer predict the same behavior, but the inferred scheme consistently gives slightly smaller Cn2 values.

© 2006 Optical Society of America

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