Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia

Tropospheric scintillation is a rapid fluctuation of the amplitude of received signal causes propagation impairments that affect satellite communication systems operating above 10 GHz. This work concentrates on those aspects in equatorial Johor Bahru, Malaysia, based on a two-year Ku-band propagatio...

Full description

Saved in:

Bibliographic Details
Main Author:	Elshami, Ibtihal Fawzi
Format:	Thesis
Language:	English
Published:	2016
Subjects:	TK5101-6720 Telecommunication
Online Access:	http://eprints.utm.my/id/eprint/84058/1/IbtihalFawziElshamiPFKE2016.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.84058
record_format	uketd_dc
spelling	my-utm-ep.840582019-11-05T04:36:17Z Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia 2016-09 Elshami, Ibtihal Fawzi TK5101-6720 Telecommunication Tropospheric scintillation is a rapid fluctuation of the amplitude of received signal causes propagation impairments that affect satellite communication systems operating above 10 GHz. This work concentrates on those aspects in equatorial Johor Bahru, Malaysia, based on a two-year Ku-band propagation measurement campaign, utilizing the equipment of Direct Broadcast Receiver (DBR) and Automatic Weather Station (AWS). The study is divided into two parts. First, the investigation of clear sky scintillation through classification and analysis of a time-series satellite broadcasting signals, followed by comparison of the statistical results with existing scintillation prediction models. A new processing method is proposed to enhance the estimation of dry scintillation, specifically for the diurnal behavior of scintillation variance. Second, this study focuses to investigate the relationship between wet scintillation and rain attenuation using experimental measurement, and concentrate on the probability density function (PDF) of different scintillation parameters. From the results, it is concluded that wet scintillation intensity increases with rain attenuation. Thus, the relationship can be phrased by linear equations or power-law. The PDFs of wet scintillation intensity, adapted to a given rain attenuation level, are found lognormally distributed, leading to selection of method for determining the relation between conditional PDFs and rain attenuation. Finally, seasonal and diurnal variations of wet scintillation are also investigated. It is found that wet scintillation fade is likely to occur in the afternoon from 3 pm to 6 pm. Meanwhile, wet scintillation intensity of the inter-monsoon shows a relatively higher rate of change of attenuation. The results can provide system operators and radio communication engineers with critical information on the fluctuations of tropospheric scintillation variance of the satellite signal during a typical day, taking into the account of local meteorological peculiarities. 2016-09 Thesis http://eprints.utm.my/id/eprint/84058/ http://eprints.utm.my/id/eprint/84058/1/IbtihalFawziElshamiPFKE2016.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:126325 phd doctoral Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK5101-6720 Telecommunication
spellingShingle	TK5101-6720 Telecommunication Elshami, Ibtihal Fawzi Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia
description	Tropospheric scintillation is a rapid fluctuation of the amplitude of received signal causes propagation impairments that affect satellite communication systems operating above 10 GHz. This work concentrates on those aspects in equatorial Johor Bahru, Malaysia, based on a two-year Ku-band propagation measurement campaign, utilizing the equipment of Direct Broadcast Receiver (DBR) and Automatic Weather Station (AWS). The study is divided into two parts. First, the investigation of clear sky scintillation through classification and analysis of a time-series satellite broadcasting signals, followed by comparison of the statistical results with existing scintillation prediction models. A new processing method is proposed to enhance the estimation of dry scintillation, specifically for the diurnal behavior of scintillation variance. Second, this study focuses to investigate the relationship between wet scintillation and rain attenuation using experimental measurement, and concentrate on the probability density function (PDF) of different scintillation parameters. From the results, it is concluded that wet scintillation intensity increases with rain attenuation. Thus, the relationship can be phrased by linear equations or power-law. The PDFs of wet scintillation intensity, adapted to a given rain attenuation level, are found lognormally distributed, leading to selection of method for determining the relation between conditional PDFs and rain attenuation. Finally, seasonal and diurnal variations of wet scintillation are also investigated. It is found that wet scintillation fade is likely to occur in the afternoon from 3 pm to 6 pm. Meanwhile, wet scintillation intensity of the inter-monsoon shows a relatively higher rate of change of attenuation. The results can provide system operators and radio communication engineers with critical information on the fluctuations of tropospheric scintillation variance of the satellite signal during a typical day, taking into the account of local meteorological peculiarities.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Elshami, Ibtihal Fawzi
author_facet	Elshami, Ibtihal Fawzi
author_sort	Elshami, Ibtihal Fawzi
title	Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia
title_short	Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia
title_full	Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia
title_fullStr	Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia
title_full_unstemmed	Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia
title_sort	tropospheric scintillation for ku-band satellite communication link in equatorial malaysia
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2016
url	http://eprints.utm.my/id/eprint/84058/1/IbtihalFawziElshamiPFKE2016.pdf
_version_	1747818435158474752

Tropospheric scintillation for Ku-band satellite communication link in Equatorial Malaysia

Similar Items