董群锋,李应乐,许家栋,张辉,王明军.沙尘的红外衰减特性研究[J].装备环境工程,2012,9(2):4-6. DONG Qun-feng,LI Ying-le,XU Jia-dong,ZHANG Hui,WANG Ming-jun.Study on Infrared Attenuation Characteristics of Sand and Dust[J].Equipment Environmental Engineering,2012,9(2):4-6.
沙尘的红外衰减特性研究
Study on Infrared Attenuation Characteristics of Sand and Dust
投稿时间:2011-11-28  
DOI:
中文关键词:  沙尘  Mie理论  衰减
英文关键词:sand and dust  Mie theory  attenuation
基金项目:国家自然科学基金(61102018,60971079);陕西省教育厅项目(2010JK891)
作者单位
董群锋 1.咸阳师范学院,陕西咸阳712000;2.西北工业大学,西安710072 
李应乐 咸阳师范学院,陕西咸阳712000 
许家栋 西北工业大学,西安710072 
张辉 咸阳师范学院,陕西咸阳712000 
王明军 咸阳师范学院,陕西咸阳712000 
AuthorInstitution
DONG Qun-feng 1. Xianyang Normal University,Xianyang712000,China;2. Northwestern Polytechnical University,Xi′an710072,China 
LI Ying-le Xianyang Normal University,Xianyang712000,China 
XU Jia-dong Northwestern Polytechnical University,Xi′an710072,China 
ZHANG Hui Xianyang Normal University,Xianyang712000,China 
WANG Ming-jun Xianyang Normal University,Xianyang712000,China 
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中文摘要:
      应用Mie理论分析了沙尘粒子的散射特性,研究了具有一定粒径分布的沙尘粒子的红外衰减特性。研究结果表明,指数分布和对数正态分布下沙尘的衰减预测结果比较接近且随能见度的增大衰减减小。不同沙尘天气衰减计算结果表明,波长为11μm时,沙尘暴引起的衰减最大、自然沙尘引起的衰减最小。
英文摘要:
      The scattering characteristics of sand/dust particles were analyzed using Mie theory. The attenuation characteristic of infrared electromagnetic wave propagation in sand and dust with special size distribution was studied. The results showed that the attenuation of exponential distribution is very close to that of the Log-normal distribution, and decreases with visibility. From the calculation results of different sand weather at a wavelength of11μm, it was shown that sand-dust storm causes the highest attenuation, while the natural sand gives the lowest attenuation.
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