Thesis (MScIng)--University of Stellenbosch, 2007. / ENGLISH ABSTRACT: This project investigates the improvement of an existing radar system by means of currently available technologies
and signal processing techniques. Upgrades are aimed to improve the system's speci cations with focus on
range resolution. Pulse compression and Doppler processing techniques are used to accomplish the improvement
in range resolution. The use of pulse compression however resulted in numerous modi cations to the RF
sub-system required by the introduction of Direct Digital Synthesizer modules. A full replacement of the existing
signal processor with a Doppler processing based signal processor implemented on a single programmable
rmware device was designed. Certain sections of this signal processor were implemented and tested. Pulse
compression was successfully implemented and tested in both the transceiver and signals processor sections. / AFRIKAANSE OPSOMMING: Hierdie projek ondersoek die verbetering van 'n bestaande radar stelsel deur gebruik te maak van huidige
tegnologie en seinverwerking tegnieke. Aanpasings is gemik om die radarstelselspesi kasies te verbeter met die
fokus op afstandsresolusie. Pulskompressie en Doppler- lter tegnieke is gebruik om 'n verbetering te maak
aan die afstandsresolusie van die stelsel. Die gebruik van pulskompressie het 'n groot aantal veranderings
aan die RF-stelsel genoodsaak a.g.v. die gebruik van Direkte Digitale Sintetiseerder modules. Die huidige
radarseinverwerker is volledig vervang met 'n Doppler gebaseerde verwerker. Hierdie verwerker is volledig
ontwerp op 'n enkele programmeerbare fermatuureenheid maar slegs sekere gedeeltes is getoets. Pulskompressie
is suksesvol toegepas en getoets in beide die RF-stelsel en in die gedeeltes van die radarseinverwerker wat getoets
is.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/21756 |
| Date | 03 1900 |
| Creators | Rust, Johannes Stephanus Warnich |
| Contributors | Blanckenberg, M. M., Wolfaardt, P. J., 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 | Unknown |
| Type | Thesis |
| Format | xvii, 1 v. (various pagings) : ill. |
| Rights | Stellenbosch University |
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