Abstract
Rain attenuation plays a significant role in satellite communications in the Ka band. The paper studied the rain attenuation using empirical formulations of the prominent models like ITU-R P.618-13, ITU-R P.838-3, Moupfouma, and Garcia Lopez. At a rain rate of 47.6 mm/hr, measured by Indian Meteorological Department for 2018 for Gadanki, near Tirupati, India, the attenuation values were calculated. The measured data, acquired by Ka band digital beacon receiver, is compared with the calculated data at the frequency of 20.2 GHz for both horizontal and vertical polarizations. The value of parameters viz. relative error, root-mean-square error, standard deviation error, and Chi-square error were calculated. Frequency scaling for the frequency of 30.5 GHz was calculated with the help of ITU-R P.618-13 method.
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Acknowledgements
I would like to thank Director Dr A.K. Patra, Ms P. Parvati, Mr T. Narayana Rao and Mr. Nirvikar Dashora from NARL Gadanki for their valuable inputs and able guidance.
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Usha, A., Karunakar, G. Preliminary analysis of rain attenuation and frequency scaling method for satellite communication. Indian J Phys 95, 1033–1040 (2021). https://doi.org/10.1007/s12648-020-01748-w
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DOI: https://doi.org/10.1007/s12648-020-01748-w