There are different studies concerning this subject with different models proposed each time. For simple calculation, a percentage of the signal is allocated to the rain attenuation. But if you would like to have precise values, you have to build a model taking into consideration the rain rate, the region or location of the signal (path), etc.
Some models: Ryde, 2 component model, Garcia model,...
Suppose if i have complete rainfall data in mm per year and i want to evaluate attenuation due to rain then what would be the best method and best way to start this project.
Dear Mukesh,
Depending on the data you have, you can choose the model which is the most suitable. There is a study about the rain attenuation done in Nigeria (climate almost similar to the one in KSA).
I hope it will be helpful.
you can refer one model provided in satellite communication by Timothy pratt topic 8,5.
This book may be of some help.
Le-Wei Li, Xiao-Kang Kang, Mook-Seng Leong, Spheroidal Wave Functions in Electromagnetic Theory, Wiley: New York, 320 pages, Wiley-Interscience Series, Edited by Kai Chang, ISBN No.: 0-471-03170-4, November, 2001.
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