Browsing by Author "Verschaeve, Tim Albert"
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- ItemDesign of a QPSK transceiver for use in satellite communication.(Stellenbosch : Stellenbosch University, 2016-12) Verschaeve, Tim Albert; Wolhuter, R.; Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering.ENGLISH ABSTRACT: Modern satellites have a wide range of transceivers and communication links, varying entirely with the overall function and mission of the satellite. All satellites however, no matter how small or trivial the mission, have some form of Telemetry, Tracking, and Command (TT&C) requirement. This communication link is critical for the success of the satellite mission, thus it's implementation is traditionally highly robust but slow. Under critical circumstances however, having a high speed TT&C link could potentially shorten and simplify data transfer times during relatively short over ight times of LEO satellites. It can also be the di erentiating factor between recovering from a unexpected fault and losing all communication and thus losing the satellite. In an attempt to address this issue, this project analyzed the di culties experienced with a traditional TT&C link and used these ndings to implement a higher speed TT&C link. To this end simulation software was designed to fully understand the dynamic operation circumstances of LEO satellites. Two SBand QPSK transceivers were designed and built. The completed transceivers were integrated with an accompanying project, and the overall system performance was tested and evaluated.