Browsing Masters Degrees (Electrical and Electronic Engineering) by Title

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Browsing Masters Degrees (Electrical and Electronic Engineering) by Title

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  • Combrink, Frederik Wilhelm (Stellenbosch : Stellenbosch University, 2001-12)
    ENGLISH ABSTRACT: This thesis describes the study of two soft-switching inverter topologies that are well suited to high-power applications. For the first topology, namely an active resonant turn-off snubber, the existing ...
  • Rossouw, Frans Jacobus (Stellenbosch : Stellenbosch University, 2000-12)
    ENGLISH ABSTRACT: Recent advances in semiconductor device development pushed a large number of network devices onto the market. These devices can solve network problems more effectively and economically than ever before. ...
  • Geschke, R. H. (Riana Helena) (Stellenbosch : Stellenbosch University, 2004-04)
    ENGLISH ABSTRACT: The implementation and verification of a recently proposed Huy gens' principle in hollow lossless waveguide is described. The extended Huygens' principle is applicable to the scattering effect of ...
  • Du Toit, Riaan (Stellenbosch : Stellenbosch University, 2008-03)
    ENGLISH ABSTRACT: The Applications of Superconductors in Cellular Network Base Stations R. Du Toit Department of Electronic Engineering University of Stellenbosch Private Bag X1, 7602 Matieland, South Africa Thesis: ...
  • Visser, Hugo Hendrik (Stellenbosch : University of Stellenbosch, 2010-03)
    ENGLISH ABSTRACT: This paper presents the implementation of an artificial magnetic ground-plane with a low profile Log-periodic Dipole Array (LPDA) antennas. After the properties of three typical Electromagnetic Bandgap ...
  • Grungxu, Lungile Leonard (Stellenbosch : Stellenbosch University, 2003-03)
    ENGLISH ABSTRACT: A multiprocessor hardware-in-the-Ioop operating system was developed for the Integrated Test System (ITS) and is aimed at implementing the ITS as a space emulation vehicle. The thesis contains a study ...
  • Grobler, H. (Stellenbosch : Stellenbosch University, 2000-12)
    ENGLISH ABSTRACT: Satellites are not all made equal. The large number of possible orbits, desired functionality and budget constraints are but a few of the factors that influence the design of a satellite. Given a ...
  • Coetzee, Nicola (Stellenbosch : University of Stellenbosch, 2005-12)
    Due to a more densely packed frequency spectrum, there is an increasing demand for narrow band filters with asymmetrical transfer function characteristics. The resulting coupling matrices contain both positive and negative ...
  • Thopil, G. A. (Stellenbosch : University of Stellenbosch, 2006-12)
    An analysis of the attitude determination and control system required for a small geostationary satellite is performed in this thesis. A three axis quaternion feedback reaction wheel control system is the primary control ...
  • Kearney, Mike-Alec (Stellenbosch : Stellenbosch University, 2013-03)
    ENGLISH ABSTRACT: The use of electrodynamic tethers on-board satellites is an exciting scientific prospect. These conductive tethers provide the means for satellites to generate power and to do propulsion by electrodynamic ...
  • Groenewald, Christoffel Johannes (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: An Attitude Determination and Control System (ADCS) demonstrator and testing platform was required for satellite engineering students. The ADCS demonstrator and testing platform will allow students to ...
  • Schoonwinkel, Johannes (Stellenbosch : University of Stellenbosch, 2007-12)
    The aim of this project was to design and test a partial attitude determination and control system for a nanosatellite. The reaction wheel system was designed and tested as an actuator for the nanosatellite. This reaction ...
  • Ntsimane, M. H. (Mpho Hendrick) (Stellenbosch : Stellenbosch University, 2001-12)
    ENGLISH ABSTRACT: A new task scheduler for the Attitude Determination and Control System (ADCS) of the Stellenbosch University Satellite (SUNSAT) has been designed and tested on a personal computer. This new scheduler ...
  • Dlamini, Zamokwakhe P. (Zamokwakhe Peacemaker) (Stellenbosch : Stellenbosch University, 2002-12)
    ENGLISH ABSTRACT: The purpose of this thesis was to design and test the interfaces of sensors and actuators. In the complete Attitude Determination and Control System CADCS) the Interface Control Processor (ICP) must ...
  • Morrison, George Campbell (Stellenbosch : Stellenbosch University, 2012-03)
    ENGLISH ABSTRACT: This research combines symbolic execution, a formal method of static analysis, with various test adequacy criteria, to explore the e ectiveness of using symbolic execution for calculating code coverage ...
  • Van Rooyen, Ruby (Stellenbosch : Stellenbosch University, 2000-12)
    ENGLISH ABSTRACT: In this thesis we addressed some issues concerning the automation of the detection, processing and the analysis of gravitational microlensing events, which are currently being used in the search for ...
  • De Vos, Jacques Pinard (Stellenbosch : University of Stellenbosch, 2005-03)
    Most of the relevant and severe congenital cardiac malfunctions can be recognized in the neonatal period of a child’s life. The delayed recognition of a congenital heart defect may have a serious impact on the long-term ...
  • Ulyate, Jessica (Stellenbosch : University of Stellenbosch, 2011-03)
    ENGLISH ABSTRACT: Accurate water usage information is very important for municipalities in order to provide accurate billing information for high volume water users. Meter reading are currently obtained by sending a ...
  • Van der Walt, Stefan Johann (Stellenbosch : University of Stellenbosch, 2005-03)
    This thesis describes techniques proposed for analysing images of borehole cores. We address two problems: firstly, the automated stratigraphic classification of cores based on texture and secondly, the location of thin ...
  • De Villiers, Edward (Stellenbosch : University of Stellenbosch, 2006-03)
    The African Speech Technology (AST) project ran from 2000 to 2004 and involved collecting speech data for five South African languages, transcribing the data and building automatic speech recognition systems in these ...