A simple physical model for simulating turbulent imaging

A simple physical model for simulating turbulent imaging
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模拟湍流成像的简单物理模型

DOI:
10.1117/12.884989
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发表时间:
2011
期刊:
Health and Ecology Issues
影响因子:
--
通讯作者:
D. Dion
D. Dion
中科院分区:
--
文献类型:
--
作者:
G. Potvin;J. L. Forand;D. Dion

文献摘要

被引文献

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我们展示了如何模拟现实的湍流图像,只使用两个标量场,从中我们得到一个高斯和非等晕点扩散函数(PSF)。第一场主要控制闪烁效应,而第二场主要控制图像位移。该模型是为弱湍流而设计的,并基于一阶Rytov湍流传播理论。我们解释了模型背后的物理原理,并使用经验证据来证明它们。
We show how to simulate realistic turbulent imagery using only two scalar fields, from which we derive a Gaussian and non-isoplanatic Point-Spread Function (PSF). The first field controls mainly scintillation effects, while the second principally controls image displacements. The model is designed for weak turbulence and is based on the first-order Rytov theory for propagation through turbulence. We explain the physical principles behind the model and justify them using empirical evidence.