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SATELLITE COMMUNICATIONS STUDY

WAN ZABIDI, WAN HIRMAN FIRDAUS (2005) SATELLITE COMMUNICATIONS STUDY. universiti teknologi petronas. (Unpublished)

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Abstract

Satellite communication systems have become an essential part of the world's telecommunication infrastructure, serving billions of people with telephone, data and video services. Despite the growth of fiber optic links, which have much greater capacity than satellite systems and a lower cost per bit, satellite systems continue to thrive and investment in new systems, continues. Satellite services have shifted away from telephony toward video and data delivery, with television broadcasting directly to the home emerging as oneof themost powerful applications. The objective of this project is to study satellite communications study through experiments and MATLAB simulation for QPSK as satellite modulation techniques. The experiments carried out were on TVRO board and weather satellites. Factors involved in determining actual signals from a broadcast television signal and tuning foreign television channels. Satellite footprints prediction is also has been carried on weather satellite experiments. It also shows the location of satellite within a certain time interval and indicates the area covered by asatellite. Besides that, the study on Global Positioning Systems (GPS) using Earth.Google also been conducted. It shows satellite images combined with maps and aerial photographs depends on medium or high resolution terrain data. In satellite modulation techniques which are QPSK, aMATLAB coding has been developed and the study on demodulator and modulator has also been considered. Geostationary Earth Orbit (GEO) satellites carry the majority services, because the use of high gain fixed antennas at earth stations maximizes the capacity of the satellites. Over the years, there has been atrend away from trunk communications using very large earth station antennas toward delivery from more powerful satellites to individual users using much smaller antennas. Low Earth orbit (LEO) and Medium Earth Orbit (MEO) satellites are used for mobile communications and navigation system and, as the need for Geographic Information Systems grows with a variety of applications, LEO earth imaging satellites have the potential to provide strong revenue streams.

Item Type: Final Year Project
Academic Subject : Academic Department - Electrical And Electronics - Pervasisve Systems - Digital Electronics - Programmable Devices
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:46
URI: http://utpedia.utp.edu.my/id/eprint/7892

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