Design of a QPSK transceiver for use in satellite communication.
| dc.contributor.advisor | Wolhuter, R. | en_ZA |
| dc.contributor.author | Verschaeve, Tim Albert | en_ZA |
| dc.contributor.other | Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. | en_ZA |
| dc.date.accessioned | 2016-12-22T13:26:38Z | |
| dc.date.available | 2016-12-22T13:26:38Z | |
| dc.date.issued | 2016-12 | |
| dc.description | Thesis (MScEng)--Stellenbosch University, 2016. | en_ZA |
| dc.description.abstract | 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. | en_ZA |
| dc.description.abstract | AFRIKAANSE OPSOMMING: Moderne satellitete het 'n verskeidenheid ontvanger / senders en kommunikasiekanale, wat heeltemal afhanklik is van die funksie en missie van die satelliet. Een eienskap wat wel gedeel word deur alle satelliete, onafhanklik van die grootte of kompleksiteit van die missie, is die noodsaak van Telemetrie, Opsporing en Beheer (TO&B) fasiliteite. Hierdie kommunikasiekanaal is krities vir die sukses van die satellietmissie, dus is die implementasie tradisioneel robuust maar stadig. Onder kritiese omstandighede kan 'n hoër spoed TO&B kanaal die tydsduur en kompleksiteit van data transmissie en ontvangs verlaag vir die relatiewe kort oorvlugtye beskikbaar vir tipiese LEO baaneienskappe. Hierdie hoër spoed TO&B kanaal kan ook die verskil beteken tussen die suksesvolle herstel van 'n foutiewe satelliet en alle kommunikasie verloor, en dus die satelliet verloor. Om hierdie probleem te probeer adreseer, is daar in hierdie projek analise gedoen om te bepaal wat die probleme is wat ervaar word met tradisionele TO&B implementasies. Wat geleer is uit die analise is daarna gebruik om 'n hoër spoed TO&B kanaal te implementeer. Om hierdie te bereik is daar simulasie sagteware geskryf om die dinamiese werksomgewing van LEO satelliete te verstaan. Twee S-Band QPSK ontvanger / senders is ontwerp en gebou. Hierdie ontvanger / senders is toe geintregreer met 'n mede projek en die totale stelsel is getoets en geevalueer. | af_ZA |
| dc.format.extent | xiv, 134 pages | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/10019.1/100203 | |
| dc.language.iso | en_ZA | en_ZA |
| dc.publisher | Stellenbosch : Stellenbosch University | en_ZA |
| dc.rights.holder | Stellenbosch University | en_ZA |
| dc.subject | Satellites -- Design and construction | en_ZA |
| dc.subject | Communication satellites | en_ZA |
| dc.subject | Radio -- Transmitter-receivers | en_ZA |
| dc.subject | UCTD | |
| dc.title | Design of a QPSK transceiver for use in satellite communication. | en_ZA |
| dc.type | Thesis | en_ZA |