Turbulence Investigation at Small Scale by Angle-of-arrival Fluctuations of a Laser Beam
OPTICA ACTA(2010)
摘要
In this paper the possibility is investigated of deriving information on the shape of the structure function of the refractive index of a turbulent medium at small scales (or, which amounts to the same thing, on the shape of the power spectrum at a high-wavenumber) from measurements of angle-of-arrival fluctuations of an optical wave propagated through it. As a result, a method is also devised for the determination of the inner scale of the turbulence.
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关键词
structure function,angle of arrival,power spectrum,refractive index,wave propagation
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