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偏振在多角度遥感中的太阳耀光消除的应用
  • 期刊名称:光学技术,32(3):375-378,2007.5(EI)
  • 时间:0
  • 分类:TP79[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]
  • 作者机构:[1]东北师范大学城市与环境科学学院,长春130024
  • 相关基金:国家自然科学基金资助项目(49771057);中国科学院知识创新工程重要方向资助项目(KZCX3-SW-338-1)
  • 相关项目:遥感多角度偏振反射光谱分析理论及岩体密度探测机理研究
中文摘要:

在进行水色遥感时,水面的镜面反射产生的太阳耀光,影响水体信息的提取和利用。以前的研究表明,当人射角为水体的布儒斯特角时,偏振可以消除太阳耀光,但是这种方法条件过于苛刻,现实中很难实现。针对这种情况,推导了自然光人射到水面后其反射光的偏振状态以及光线人射角与水体偏振度的关系。理论上证明了以非布儒斯特角人射时偏振消除太阳耀光的可能性,计算了从各个角度人射到纯净水体表面太阳耀光剥离的程度,实验验证了结论。

英文摘要:

The mirror reflectance of water surface produces the sun glitter in ocean odor remote sensing. It is unable to draw water body information from the total radiation at all. The previous study showed that polarization can eliminate the sun glitter when the incidence angle is just Brewster angle of water body. But this method suffers from difficulty in rigorous conditions and being realized. The polarization state of reflected light of water and the relationship of incidence angle and degree of water polarization were deduced, The feasibility of sun glitter's elimination by polarized with non Brewster angle was set forth. The level of sun glitter's peeling-off of water at some incidence angles were calculated. The results are proved by the experiments.

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