Thesis (MEng)--University of Stellenbosch, 2000. / ENGLISH ABSTRACT: This document describes the breadboard design and practical evaluation of a mobile
field station, capable of communicating with the SUNSAT micro satellite. A study of
existing satellite communication systems employing LEO satellites, as well as the
physical phenomena, influencing the VHF communication link between earth and
such satellites was done and used to determine the specifications needed for a
functional field station.
The design entailed work on different building blocks like a receiver, transmitter and
modem unit as well as the writing and testing of the necessary software on a
controlling personal computer. The measurements done showed that the field station
satisfies most of the specifications, and that it is capable of communicating with a
satellite. The document is concluded by suggesting improvements and possible further
work before a commercial version of the field station may be build. / AFRIKAANSE OPSOMMING: In hierdie dokument word die ontwerp en praktiese evaluasie van 'n mobiele
veldstasie beskryf wat met die SUNSAT mikrosatelliet kan kommunikeer. 'n
Ondersoek na bestaande satellietstelsels in lae-aard wentelbane en die fisiese faktore
wat die radioskakel tussen die grond en sulke satelliete beïnvloed is gebruik om
spesifikasies vir 'n werkende veldstasie daar te stel.
Die ontwerpstaak het werk aan 'n ontvanger, sender, modem en beheerproggramatuur
ingesluit. Die voltooide veldstasie is gekarakteriseer deur 'n meetproses wat
aangetoon het dat dit met 'n satelliet kan kommunikeer. Die dokument word afgesluit
met voorgestelde verbeterings en verdere werk aan die veldstasie voordat 'n
kommersiële weergawe daarvan voltooi kan word.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/51677 |
| Date | 03 1900 |
| Creators | Erasmus, J. M. (Johan Michiel) |
| Contributors | Milne, G. W., Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : Stellenbosch University |
| Source Sets | South African National ETD Portal |
| Language | en_ZA |
| Detected Language | English |
| Type | Thesis |
| Format | 1 v. (various pagings) : ill. |
| Rights | Stellenbosch University |
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