| 基于电矢量描述的大气偏振建模 |
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| 引用本文： | 张旭东,林金金,谢昭,纪松,吴克伟,高隽.基于电矢量描述的大气偏振建模[J].电子学报,2010,38(12):2745-2750. |
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| 作者姓名： | 张旭东 林金金 谢昭 纪松 吴克伟 高隽 |
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| 作者单位： | 合肥工业大学计算机与信息学院,安徽合肥 230009 |
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| 基金项目： | 国家863高技术研究发展计划(No.2009AA12Z309,No.2009AA7033130) |
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| 摘 要： | 现有理想情况下大气偏振建模回避了对散射过程的描述,无法扩展到实际模型.本文采用电场强度矢量描述光波,建立天球坐标系与东北天坐标系研究光的多点单次散射过程.利用两坐标系之间的转换关系计算参数,将单次瑞利散射分析方法应用于全天域.计算散射光电场强度矢量并处理,得到偏振度和偏振方向矢量来表征大气偏振信息.仿真实验表明该方法能够准确描述理想情况下大气偏振模式,且所得电矢量可以作为实际建模的参考数据,方法具有一定的扩展性和应用价值.
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| 关 键 词： | 大气光学 大气偏振模式 电矢量 坐标系转换 |
| 收稿时间： | 2009-12-02 |
Modeling of Skylight Polarization Pattern Based on Electric Vector |
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| ZHANG Xu-dong,LIN Jin-jin,XIE Zhao,JI Song,WU Ke-wei,GAO Jun.Modeling of Skylight Polarization Pattern Based on Electric Vector[J].Acta Electronica Sinica,2010,38(12):2745-2750. |
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| Authors: | ZHANG Xu-dong LIN Jin-jin XIE Zhao JI Song WU Ke-wei GAO Jun |
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| Institution: | Department of Computer and Information,Hefei University of Technology,Hefei,Anhui 230009,China |
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| Abstract: | Traditional ideal model of skylight polarization pattern can't be extended to actual situations without analysis of scattering process.In this paper,electric field intensity vector is used to describe light waves.Then the celestial coordinate system and the north-east-up coordinate system are established respectively to analyze the scattering process.Utilizing the transformational relation of the two coordinate systems,the analytical method of Rayleigh scattering can be applied to every measured point over ... |
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| Keywords: | atmospheric optics skylight polarization pattern electric vector coordinate system transformation |
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