Attenuation Properties of Dusty Media Using Mie Scattering Solution
Attenuation Properties of Dusty Media Using Mie Scattering Solution
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DOI：
10.2528/pierm15022403
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发表时间：
2015-01-01
影响因子：
1
通讯作者：
Sharif, Sami M.
中科院分区：
文献类型：
--
作者：
Sharif, Sami M.
建立了一个真实的模型来预测电磁信号在尘埃介质（沙尘暴）中传播时的比衰减。该模型是基于Mie近似的电磁信号散射的球形粒子。该模型考虑了尘埃粒子尺度的变化。粉尘介电常数的可靠公布值用于2GHz至100GHz频率范围内的计算（即，S波段、X波段、K波段、Ka波段、Ku波段和W波段）。该模型的结果与文献中建议的其他模型的结果进行了比较。空气湿度对比衰减的影响也进行了研究。
A realistic model is developed to predict the specific attenuation when electromagnetic signals propagate through dusty media (dust storms). The model is based on Mie approximation for the scattering of electromagnetic signal by a spherical particle. Variation of the dust particles dimensions is considered in this model. Reliable published values for dust dielectric constant are used for computations over the frequency range from 2GHz to 100GHz, (i.e., S-band, X band, K-band, Ka-band, Ku-band and W-band). The model outcome is compared with the results from other models suggested in literature. The effect of air humidity on specific attenuation is also investigated.