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Observations of spherical-wave scintillation in strong refractive-index turbulence
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1988
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[PDF-60.06 MB]
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Description:We present some observations of the fine structure of sphericalwave intensity scintillation, with concurrent independent measurements of refractive-index turbulence and inner scale, made over a 1 km path. Quantitative measurements of the spatial
covariance were made by continuously cycling the spacing of two 1-mm diameter detectors, by operating continuously at fixed spacings, and by converting the temporal frequency observed by a small-diameter detector, moving at high speed in a circular
pattern, to spatial wavelength. Qualitative information was also obtained through high-speed photographs. Details much smaller than the inner scale, which did not arise from the last few meters of the path, were observed by all techniques.
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Rights Information:CC0 Public Domain
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