Specific Rain Attenuation Derived from a Gaussian Mixture Model for Rainfall Drop Size Distribution

K'ufre-mfon E. Ekerete, Francis Hunt, Judith L. Jeffery, Ifiok Otung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Precipitation, particularly rain affects the millimetre and sub-millimetre frequencies more severely than it does for lower frequencies in the Earth-space path. There is therefore a need for accurate models that will enable the rainfall drop size distribution (DSD) to be better predicted for better planning and improved service delivery. Using data captured at Chilbolton Observatory, this paper looks at modelling the DSD using the Gaussian Mixture Model (GMM), and attempts to predict the specific attenuation due to rain based on this model and compares the result with other well-established statistical models (lognormal and gamma). Results show that specific attenuation tends to increase with the drop sizes, and the smaller drops contribute little to the overall attenuation experienced by signals. Specific attenuation was computed based on several standard statistical distributions, and compared with that derived from the ITU recommendation.

Original languageEnglish
Title of host publicationWireless and Satellite Systems
Subtitle of host publication 8th International Conference, WiSATS 2016, Proceedings
PublisherSpringer
Pages156-166
Number of pages11
Volume186 LNICST
ISBN (Print)9783319538495
DOIs
Publication statusPublished - 24 Mar 2017
Event8th International Conference on Wireless and Satellite Systems, WiSATS 2016 - Cardiff, United Kingdom
Duration: 19 Sept 201620 Sept 2016

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume186 LNICST
ISSN (Print)18678211

Conference

Conference8th International Conference on Wireless and Satellite Systems, WiSATS 2016
Country/TerritoryUnited Kingdom
CityCardiff
Period19/09/1620/09/16

Keywords

  • THeoretical modelling
  • Space and satellite communications
  • Estimation and forecasting
  • Probability distributions
  • rainfall drop size distribution (DSD)
  • Gaussian Mixture Model (GMM)
  • Specific attenuation

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