• Real-time HV OHTL sag monitoring system based on power line carrier signal behaviour 

      De Villiers, Wernich (Stellenbosch : University of Stellenbosch, 2005-12)
      ENGLISH ABSTRACT: A new method of measuring the change in the average height of phase conductors above the ground plane of High Voltage (HV) Overhead Transmission Lines (OHTLs) was discovered in 1999, at Stellenbosch ...
    • Reverberation chamber time and frequency metrology for MeerKAT systems shielding evaluation 

      Andriambeloson, Joely Andrianina (Stellenbosch : Stellenbosch University, 2014-12)
      ENGLISH ABSTRACT: Electromagnetic shielding plays a significant role in the protection of electronic equipment. Its application is essential for mitigating radio-frequency interference for the Karoo Array Telescope ...
    • Robust Fly-by-Wire under Horizontal Tail Damage 

      Dlamini, Zinhle (Stellenbosch : Stellenbosch University, 2016-12)
      ENGLISH ABSTRACT: Aircraft damage modelling was conducted on a Boeing 747 to examine the effects of asymmetric horizontal stabiliser loss on the flight dynamics of a commercial fly-by-Wire (FBW) aircraft. Change in static ...
    • RSFQ digital circuit design automation and optimisation 

      Muller, Louis C. (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: In order to facilitate the creation of complex and robust RSFQ digital logic circuits an extensive library of electronic design automation (EDA) tools is a necessity. It is the aim of this work to ...
    • Scheduling strategies to improve quality of service for heterogeneous data over resource constrained wireless mesh networks 

      Sheikh, Sajid Mubashir (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT: Cost and bandwidth plays a major role in many telemetry and Internet of Things (IoT) application network implementations. Wireless Mesh Networks (WMNs) based on singleradio single-channel (SRSC) networks ...
    • The simulation and optimization of steady state process circuits by means of artificial neural networks 

      Aldrich, Christiaan (Stellenbosch : Stellenbosch University, 1993)
      ENGLISH ABASTRACT: Since the advent of modern process industries engineers engaged in the modelling and simulation of chemical and metallurgical processes have had to contend with two important dilemmas. The first concerns ...
    • Simulation and verifcation software for superconducting electronic Circuits 

      Delport, Johannes Arnoldus (Stellenbosch : Stellenbosch University, 2019-04)
      ENGLISH ABSTRACT: The dissertation presents simulation and veri cation software for both high- and low-level de- signs with emphasis on superconducting integrated circuits. A static timing analysis tool called SuperSTA ...
    • Smart dock for bicycle protection in theft-prone urban areas 

      Swanepoel, Mardu Christof (Stellenbosch : Stellenbosch University, 2017-12)
      ENGLISH ABSTRACT: Cycling, when utilised as a form of transport in an urban environment, holds valuable benefits and sustainable advantages for a wide variety of stakeholders. Various barriers exist that contribute to a ...
    • Spinning solar sail : the deployment and control of a spinning solar sail satellite 

      Jordaan, Willem Hendrik (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: Solar sailing has become a viable and practical option for current satellite missions. A spinning solar sail has a number advantages above a 3-axis stabilised sail. A spinning sail is more resistant to ...
    • SQUID geomagnetic signal analysis and modelling of Schumann Resonances in the earth-ionosphere cavity 

      Kwisanga, Christian (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: Due to its extreme sensitivity to magnetic flux, vast dynamic range and wide bandwidth, the Superconductive Quantum Interference Device (SQUID) is at the frontier of all existing magnetic field sensors. ...
    • A state management and persistency architecture for peer-to-peer massively multi-user virtual environments 

      Gilmore, John Sebastian (Stellenbosch : Stellenbosch University, 2013-03)
      ENGLISH ABSTRACT: Recently, there has been significant research focus on Peer-to-Peer (P2P) Massively Multi-user Virtual Environments (MMVEs). A number of architectures have been presented in the literature to implement ...
    • Super-resolution imaging 

      Van der Walt, Stefan Johann (Stellenbosch : University of Stellenbosch, 2010-12)
      ENGLISH ABSTRACT: Super-resolution imaging is the process whereby several low-resolution photographs of an object are combined to form a single high-resolution estimation. We investigate each component of this process: ...
    • A superconducting software defined radio frontend with application to the Square Kilometre Array 

      Volkmann, Mark Hans (Stellenbosch : Stellenbosch University, 2013-12)
      ENGLISH ABSTRACT: Superconducting electronics can make the Square Kilometre Array (SKA) a better instrument. The largest radio telescope in the world will consist of several arrays, the largest of which, consisting of ...
    • Synthesis methods for multi-band coupled resonator filters 

      Brand, Tobias Gerhardus (Stellenbosch : Stellenbosch University, 2014-12)
      ENGLISH ABSTRACT: In this dissertation a number of techniques to design multi-band filters, with specific focus on coupled resonator implementations, is presented. Multi-band transfer functions are constructed from ...
    • A tool kit for the design of superconducting programmable gate arrays 

      Fourie, Coenrad Johann (Stellenbosch : University of Stellenbosch, 2004-12)
      ENGLISH ABSTRACT: The development of a tool kit for the design of superconducting programmable gate arrays (SPGAs) is discussed. A circuit optimizer using genetic algorithms is developed and evaluated. Techniques and a ...
    • Torque Performance of Optimally Designed Multi-Phase Reluctance DC Machines 

      Rakgati, Edward Tshitshiri (Stellenbosch : University of Stellenbosch, 2006-12)
      The focus of this thesis is on the critical evaluation of the torque performance of the optimum designed reluctance DC machine (RDCM). The thesis focuses on multi-phase RDCM drives with normal laminated salient pole rotors ...
    • Total ionizing dose mitigation by means of reconfigurable FPGA computing 

      Smith, Farouk (Stellenbosch : University of Stellenbosch, 2007-12)
      There is increasing use of commercial components in space technology and it is important to recognize that the space radiation environment poses the risk of permanent malfunction due to radiation. Therefore, the integrated ...
    • Training neural word embeddings for transfer learning and translation 

      Gouws, Stephan (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: In contrast to only a decade ago, it is now easy to collect large text corpora from theWeb on any topic imaginable. However, in order for information processing systems to perform a useful task, such as ...
    • Tunable evanescent mode X-band waveguide switch 

      Sickel, Thomas (Stellenbosch : University of Stellenbosch, 2005-12)
      A tunable X-band PIN diode switch, implemented in evanescent mode waveguide, is presented. To allow in-situ tuning of resonances after construction, a novel PIN diode mounting structure is proposed and verified, offering ...
    • Tunable narrow-band X-band bandpass filters 

      Meyer, Elmine (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT: This dissertation proposes two narrow-band tunable X-band filters from different classes, one planar and one waveguide. The first is a suspended substrate varactor-tuned doubly end-loaded staircase filter ...