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The Parabolic Equation Model for Estimating Fog Attenuation at Millimeter Wavelengths
Author(s): 
Pages: 958-962
Year: Issue:  5
Journal: Acta Electronica Sinica

Keyword:  parabolic equationfog attenuationcomplex environmentmillimeter wave;
Abstract: Fog is one of the crucial factors in determining the performance of millimeter-wave communication systems .Be-cause of the fact that the multipath propagation is not be taken into account by the traditional empirical formulae ,this paper devel-oped a parabolic equation model for estimating fog attenuation .The fog attenuation rate predicted by the model agrees well with that obtained by the Rayleigh approximation and an empirical formula ,which verify the accuracy of our method .Finally ,the model is applied to simulate the propagation characteristics of millimeter-wave at frequency of 35 GHz and 94 GHz in Advection fog and Ra-diation fog with complex environments ,respectively .The results demonstrate that the model can take account of wave diffraction and reflection ,and thus our scheme provides an efficient numerical method for computation of the propagation characteristics of millime-ter-wave in complex environments .
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