Volume 1, Issue 3, December 2016, Page: 59-62
Determination and Comparative Analysis of Refractivity Profile and Fade Depth for Microwave Links in Lagos
Udofia Kufre. M., Department of Electrical/Electronic and Computer Engineering, University of Uyo, Akwa Ibom, Nigeria
Ogungbemi Emmanuel Oluropo, Department of Electrical/Electronic and Computer Engineering, University of Uyo, Akwa Ibom, Nigeria
Etokebe Iniobong Jackson, Department of Electrical/Electronic and Computer Engineering, University of Uyo, Akwa Ibom, Nigeria
Received: Oct. 17, 2016;       Accepted: Dec. 28, 2016;       Published: Jan. 16, 2017
DOI: 10.11648/j.ijics.20160103.15      View  2423      Downloads  45
Abstract
The concept of radio link design and planning remain very vital to a radio link engineer and so the need to have a clear information outlook of the refractivity profile and fade depth of that location. In this study, radiosonde data from 2012 to 2014 was used to estimate the point refractivity gradient and fade depth for Lagos located 6.4531° N, 3.3958°E South West of Nigeria. The refractivity gradient for Lagos from the distribution table showed the highest occurrence in December with dN1 of -56.4268.1N units and February with the lowest dN1 having -398.5034N units while the fade depth for the different models also showed monthly and seasonal variations, with fade depth of 142.03 dB for the ITU-R P.530-9 model, 132.051 dB for the ITU-R P.530-14 model and 156.861 dB for the ITU-R P.530-16 model.
Keywords
Refractivity, Refractivity Index, Refractivity Gradient, Fade Depth, Radiosonde Data, Geoclimatic Factor
To cite this article
Udofia Kufre. M., Ogungbemi Emmanuel Oluropo, Etokebe Iniobong Jackson, Determination and Comparative Analysis of Refractivity Profile and Fade Depth for Microwave Links in Lagos, International Journal of Information and Communication Sciences. Vol. 1, No. 3, 2016, pp. 59-62. doi: 10.11648/j.ijics.20160103.15
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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