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Review of Rain Attenuation Measurements On Earth - Space Links in Nigeria

Omotosho, T. V. and Obiyemi, O. O. and Mandeep, J. S and Abdullah, M. and Akinwumi, S. A. and Willoughby, A.A. and Ometan, Oluwafunmilayo O. and Adewusi, M. O. (2015) Review of Rain Attenuation Measurements On Earth - Space Links in Nigeria. In: International Conference on Space Science and Communication, 10-12 August 2015, Langkawi Malaysia.

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Abstract

Due to the prevailing impact of rain on microwave and millimetre wave propagation in tropical climates, fade margins derived from experimental campaigns would provide more practical estimates for planning. In this paper, the extent of work done on the experimental assessment of the attenuation induced by rain on practical earth-space links in Nigeria is presented. The cumulative rain rate distributions derived from the instantaneous precipitation indices for propagation modelling and the estimation of fade margin is presented for Ile-Ife, Akure, Ilorin, Ota, Osogbo and Ogbomoso. Results reveals the spatial variability of the point rainfall rate across these stations. Although the stations engaged with measurement on rain attenuation are limited in number, preliminary results from new stations are presented, while addition data from ongoing campaigns will provide a robust indices for modelling the digital DTH links and for evaluating the performance of pre-existing models over Nigeria.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: rain attenuation
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 15 Mar 2017 13:34
Last Modified: 15 Mar 2017 13:34
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/7939

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