| 混浊大气介质调制传递函数的一般特征 |
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| 引用本文： | 饶瑞中. 混浊大气介质调制传递函数的一般特征[J]. 光学学报, 2011, 0(9): 218-223 |
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| 作者姓名： | 饶瑞中 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室; |
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| 摘 要： | 基于混浊介质的调制传递函数(MTF)和在各向同性漫射光源照射下平行平面混浊介质出射光强度分布之间的等效原理,利用辐射传输算法DISORT数值计算了几种典型的均匀大气混浊介质的MTF,获得了整个空间频域内MTF的一般特征.结果显示,大气介质的MTF不但依赖于介质的光学厚度(散射和吸收),也依赖于介质的散射相函数.给出了大...
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| 关 键 词： | 大气光学 混浊介质中的成像 光学传递函数 调制传递函数 辐射传输 |
General Characteristics of Modulation Transfer Function of Turbid Atmosphere |
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| Rao Ruizhong. General Characteristics of Modulation Transfer Function of Turbid Atmosphere[J]. Acta Optica Sinica, 2011, 0(9): 218-223 |
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| Authors: | Rao Ruizhong |
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| Affiliation: | Rao Ruizhong(Key Laboratory for Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei,Anhui 230031,China) |
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| Abstract: | Based on the equivalence of the modulation transfer function(MTF) of a plane parallel turbid medium and the emergent light intensity distribution from the medium under isotropic diffuse illumination,the MTF of some typical turbid media is fully evaluated through numerical solution with a radiation transfer code DISORT.General MTF characteristics in the whole spatial frequency range are obtained.It is found that the MTF behavior depends not only on the scattering and absorption optical thickness of the mediu... |
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| Keywords: | atmospheric optics imaging through turbid media optical transfer function modulation transfer function radiative transfer |
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