| 不同大气条件对遥感成像影响的蒙特卡罗分析方法 |
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| 引用本文： | 杜尚宇,王先华,王震.不同大气条件对遥感成像影响的蒙特卡罗分析方法[J].大气与环境光学学报,2009,4(6):441-447. |
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| 作者姓名： | 杜尚宇 王先华 王震 |
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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通用光学定标与表征技术重点实验室,安徽,合肥,230031 |
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| 摘 要： | 随着遥感器空间分辨率不断提高,大气作为遥感成像过程中不可逾越的介质.由其产生的影响,可能在一定程度上抵消了分辨率的提高.为了定量的分析不同大气条件对遥感成像带来的影响,首先介绍了蒙特卡罗原理与蒙特卡罗大气辐射传输模拟方法,借助 Modtran 的标准大气模式,模拟了不同条件下光子的扩散情况,分析了不同波长、能见度、遥感器高度,气溶胶粒子非对称因子以及观测角度条件下,大气点扩散函数的变化情况.模拟结果表明不同大气条件对遥感图像数据质量存在着不同程度的影响.
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| 关 键 词： | 辐射传输 点扩散函数 蒙特卡罗方法 遥感图像 |
| 收稿时间： | 2009/5/4 |
Analysis of the Influence on Remote Sensing Imaging under Different Atmospheric Conditions by Monte-Carlo Method |
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| DU Shang-yu,WANG Xian-hua,WANG Zhen.Analysis of the Influence on Remote Sensing Imaging under Different Atmospheric Conditions by Monte-Carlo Method[J].Journal of Atmospheric and Environmental Optics,2009,4(6):441-447. |
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| Authors: | DU Shang-yu WANG Xian-hua WANG Zhen |
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| Affiliation: | DU Shang-yu,WANG Xian-hua,WANG Zhen (Key Laboratory of Optical Calibration and Characterization,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China) |
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| Abstract: | With the development of remote sensing space resolution,the atmosphere as impassable medium of remote sensing imaging made the resolution decrease.For quantitative analysis on the influence of different atmospheric conditions,the Monte-Carlo theory and atmospheric radiative transfer by Monte-Carlo method was introduced firstly,and the photons diffusion in different conditions was simulated.Atmospheric point spread function is studied under different conditions of wavelength,different visibility,different re... |
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| Keywords: | radiative transfer point spread function Monte-Carlo method remote sensing image |
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