Influence of sunlight and moonlight on polarization patterns during twilight

Cui Yan; GAO Qi-sheng; CHU Jin-kui; CHEN CHen

doi:10.3788/OPE.20132101.0034

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Influence of sunlight and moonlight on polarization patterns during twilight

Article | 更新时间：2020-08-12

- Influence of sunlight and moonlight on polarization patterns during twilight
- Optics and Precision Engineering Vol. 21, Issue 1, Pages: 34-39(2013)
- 作者机构：
  
  大连理工大学精密与特种加工教育部重点实验室,辽宁大连,116023
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20132101.0034
  CLC：
- Received：08 June 2012，
  
  Revised：20 August 2012，
  
  Published Online：24 January 2013，
  
  Published：15 January 2013
- 稿件说明：
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崔岩高启升褚金奎陈辰. 太阳光与月光对曙暮光偏振模式的影响[J]. 光学精密工程, 2013,21(1): 34-39

CUI Yan GAO Qi-sheng CHU Jin-kui CHEN CHen. Influence of sunlight and moonlight on polarization patterns during twilight[J]. Editorial Office of Optics and Precision Engineering, 2013,21(1): 34-39
崔岩高启升褚金奎陈辰. 太阳光与月光对曙暮光偏振模式的影响[J]. 光学精密工程, 2013,21(1): 34-39 DOI： 10.3788/OPE.20132101.0034.

CUI Yan GAO Qi-sheng CHU Jin-kui CHEN CHen. Influence of sunlight and moonlight on polarization patterns during twilight[J]. Editorial Office of Optics and Precision Engineering, 2013,21(1): 34-39 DOI： 10.3788/OPE.20132101.0034.

摘要

为研究曙暮光时分天空的偏振模式，确定了太阳光偏振模式与月光偏振模式在曙暮光时分天空偏振模式形成中所起的作用。首先基于Rayleigh散射理论，运用matlab对太阳光与月光的偏振模式进行仿真，分析二者的差异性；接着利用成像式全天空测试系统对曙暮光的偏振模式进行测试，获取了晴朗天气下曙暮光偏振模式分布图；最后将测试结果与太阳光和月光偏振模式分别进行对比，基于中性点位置、中性点数量和子午线方向确定了太阳光与月光对曙暮光偏振模式的影响。结果表明：曙暮光偏振模式测试分布图与太阳光偏振模式理论分布图更加接近

证明了太阳光偏振模式在曙暮光时分天空偏振模式的形成中起主要作用。

Abstract

To explore the skylight polarization patterns during twilight

the effects of sunlight and moonlight on the skylight polarization patterns during twilight were investigated. First

the polarization patterns of sunlight and moonlight were simulated by matlab based on Rayleigh scattering theory and the differences between them were analyzed .Then

the polarization patterns during twilight were measured by a full-sky imaging test system and the polarization pattern distributions during twilight were obtained on a good day. Finally

the test results were compared with the simulation polarization patterns of sunlight

respectively and moonlight and the effects of sunlight and moonlight on polarization patterns during twilight were studied based on the positions of the neutral points

the number of neutral points and the direction of the meridian. The results show that the tested polarization patterns are in agreement with the theoretical polarization patterns of sunlight

which concludes that the polarization patterns of sunlight play a major role in the polarization patterns during twilight.

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Keywords

references

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