Browsing Masters Degrees (Electrical and Electronic Engineering) by Title

Now showing items 66-85 of 578

    • Beamforming for radio astronomy 

      Van Tonder, Vereese (Stellenbosch : Stellenbosch University, 2014-12)
      ENGLISH ABSTRACT: Beamforming is a technique used to combine signals from an array of antennas to effectively synthesize a single aperture and beam. In the Radio Astronomy community the technique is used to obtain a ...

    • Benefits to processor load for quadrature baseband versus radio frequency demodulation algorithms 

      Ndovi, Lusungu (Stellenbosch : Stellenbosch University, 2008-12)
      The continued advancement and improvement of software-defined radio technology has been a key factor in furthering research into the implementation of most signal processing algorithms at baseband. Traditionally, these ...

    • Bidirectional converter for a stirling energy system 

      Redecker, H. H. (Hans Henning) (Stellenbosch : University of Stellenbosch, 2004-12)
      ENGLISH ABSTRACT: This thesis discusses a 23 kW three-phase AC bus system that is utilized together with the “Stirling Energy System (SES) Integrated Solar Dish-Stirling Module” to function as a mini-grid for off-grid ...

    • Biologically inspired flight : the autonomous control of a quadcopter using spiking neural networks 

      Smith, Durham Valdon (Stellenbosch : Stellenbosch University, 2015-12)
      ENGLISH ABSTRACT: With the recent increase in the availability and popularity of micro aerial vehicles new methods for their autonomous control should be investigated. In this project the autonomous control of a flying ...

    • Bird song recognition with hidden Markov models 

      Van der Merwe, Hugo Jacobus (Stellenbosch : Stellenbosch University, 2008-03)
      Automatic bird song recognition and transcription is a relatively new field. Reliable automatic recognition systems would be of great benefit to further research in ornithology and conservation, as well as commercially ...

    • Bore sight error analysis in seeker antennas : a fully functional GUI interfaced ray tracing solution 

      Barnard, Daniel David (Stellenbosch : Stellenbosch University, 2013-03)
      ENGLISH ABSTRACT: Airborne seeker antennas are usually enclosed within a dielectric radome for protection against their harsh operational environment. However the presence of a radome can introduce serious degrading effects ...

    • A Bore-sight Motion Detection Algorithm for Satellite Attitude Control 

      Visagie, Lourens (Stellenbosch : University of Stellenbosch, 2007-12)
      During an imaging pass of a remote sensing satellite, the satellite’s attitude has to be controlled so that the imager bore-sight sweeps out equal distances over time and so that images with a square aspect ratio are ...

    • A broadband microwave limiting amplifier 

      Neethling, M. (Marthinus) (Stellenbosch : University of Stellenbosch, 2004-12)
      ENGLISH ABSTRACT: Limiting amplifiers are employed in electronic warfare (EW) systems requiring a high measure of amplitude control. These EW systems employ sensitive signal processing components that are unable to accept ...

    • Brush-DC Equivalent control based delta modulation for a PWM inverter-fed nine-phase induction machine drive 

      Gunda, Lovemore (Stellenbosch : Stellenbosch University, 2015-12)
      ENGLISH ABSTRACT: A considerable amount of research has been done on the control of induction machines since the introduction of the power electronic inverter. The use of power electronic inverters has also opened the way ...

    • Cable trays and EMC : modelling and measurement 

      Ebertsohn, Nolan Wade (Stellenbosch : Stellenbosch University, 2005-12)
      ENGLISH ABSTRACT: Common mode currents are a major source of interference in electrical and electronic systems. A universal solution to counteract common mode interference is to introduce an electromagnetic shield with ...

    • Calibration of large Rogowski coils 

      Combrink, Stephanus Lucas (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: The Square Kilometre Array aims to be the world’s largest radio telescope. South Africa will host the mid to high frequency division of the SKA and the core site will be populated with 64 offset Gregorian ...

    • Calibration of UV-sensitive camera for corona detection 

      Du Toit, Nicolaas Serdyn (Stellenbosch : University of Stellenbosch, 2007-03)
      Electrical energy is continuously transported across the world by high voltage transmission lines. These transmission lines are however subject to losses beside the inherent resistive and dielectric losses. This additional ...

    • A CAN based distributed telemetry and telecommand network for a nanosatellite 

      Khumalo, Simphiwe (Stellenbosch : Stellenbosch University, 2008-03)
      A communications protocol is designed for real time control and data handling for a Nanosatellite application. The communication protocol is based on the Controller Area Network (CAN) technology. The protocol handles ...

    • Characterisation of L-band differential low noise amplifiers 

      Prinsloo, David Schalk Van Der Merwe (Stellenbosch : Stellenbosch University, 2011-12)
      ENGLISH ABSTRACT: This thesis addresses the complications that are encountered when characterising the performance of differential microwave LNAs. The predominant sources of noise in electronic circuits are introduced and ...

    • Characterization of RF signal coupling into MeerKAT telescopes 

      Kuja, Stanley Okoth (Stellenbosch : Stellenbosch University, 2015-12)
      ENGLISH ABSTRACT: The study of weaker astronomical waves originating from billions of light years away could give an insight into the dawn of the universe's history. This requires the use of highly sensitive radio receivers ...

    • Coaxial resonator filters 

      Maas, Susan (Stellenbosch : Stellenbosch University, 2011-12)
      ENGLISH ABSTRACT: The purpose of this project is to develop a number of coaxial resonator lters. Firstly, the theoretical model of the lter is discussed, with a Tchebyscheff LC-ladder prototype lter used to derive a ...

    • Code generation and simulation of an automatic, flexible QC-LDPC hardware decoder 

      Von Leipzig, Mirko (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: Iterative error correcting codes such as LDPC codes have become prominent in modern forward error correction systems. A particular subclass of LDPC codes known as quasicyclic LDPC codes has been ...

    • Comparative evaluation of the Mobile Protocol 6 Suite 

      Pieterse, Johan (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: Mobile IPv6 is a proposed mobility standard for Next Generation Wireless Access Networks that allows mobile nodes, such as laptops, tablets, smart phones to stay reachable while moving around in an IPv6 ...

    • Comparative evaluation of video watermarking techniques in the uncompressed domain 

      Van Huyssteen, Rudolph Hendrik (Stellenbosch : Stellenbosch University, 2012-12)
      ENGLISH ABSTRACT: Electronic watermarking is a method whereby information can be imperceptibly embedded into electronic media, while ideally being robust against common signal manipulations and intentional attacks to ...

    • A comparative study of cloud computing environments and the development of a framework for the automatic deployment of scaleable cloud based applications 

      Mlawanda, Joyce (Stellenbosch : Stellenbosch University, 2012-03)
      ENGLISH ABSTRACT: Modern-day online applications are required to deal with an ever-increasing number of users without decreasing in performance. This implies that the applications should be scalable. Applications hosted ...