一种同时测量大气湍流特征尺度和强度的简单光学方法

Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques Pub Date : 1900-01-01 DOI:10.1364/lors.1987.tuc2

A. Zhukov, V. Nosov

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引用次数: 0

摘要

为了解决光辐射在大气中传播的大量问题，必须确定大气湍流特性。湍流有内部l0和外部l0尺度，折射率cn2波动的结构特征。c2的值决定了湍流的强度。所有这些特征都是空间谱密度φ n (x)中的参数，函数为[1,2]，其中x m =5,92/ 10, x 0 =2π/L 0。在惯性子范围(x 0≤x≤x m)，模型(1)与湍流的Kolmogorov谱重合。

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A Simple Optical Method of Simultaneous Measurement of Characteristic Scales and Intensity of Atmospheric Turbulence

For solving a large number of problems on optical radiation propagation in the atmosphere the atmospheric turbulent characteristics should be determined. There are the inner l 0 and outer L 0 scales of turbulence, structural characteristics of fluctuations of the refractive index C n 2 . The value of C n 2 determines the turbulence intensity. All these characteristics are the parameters in the spatial spectral density φ n (x). The function is given as [1,2] where x m =5,92/l0, x 0 =2π/L 0 . In the inertial subrange (x 0 ≤ x ≤ x m ) the model (1) coincides with the Kolmogorov spectrum of turbulence.

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Topical Meeting on Laser and Optical Remote Sensing: Instrumentation and Techniques

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