Considering the nonlinear affects of various parameters on rain attenuation, we propose a new rain attenuation model based on evolutionary neural network and compare it with the ITU-R model.
本文在考虑多个参数对雨衰减非线性影响的基础上，建立了基于进化神经网络的雨衰减模型，并与ITU - R模型进行了比较。
Based on the mechanism of rain attenuation, the special attenuation by rain is calculated by the equivalent dielectric permittivity model.
基于降雨衰减机理，利用雨介质的等效介电常数模型计算了降雨的特征衰减。
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