Browsing Masters Degrees (Electrical and Electronic Engineering) by Title

Now showing items 257-276 of 514

  • Fabrication of high-temperature superconducting nanobridges using atomic force microscopy 

    Elkaseh, Akram Abdulsalam (Stellenbosch : University of Stellenbosch, 2006-12)
    The Josephson effect of high-temperature superconducting nanobridge structures is studied worldwide. Until now, nanobridges are generally fabricated with focused ion beam milling on planar thin films. These nanobridges ...

  • The fabrication of PBCO buffered step-edge Josephson junctions 

    Van Staden, Wynand Fourie (2007-03)
    A major challenge in the design and operation of High Temperature Superconducting (HTS) devices is the fabrication of reproducible Josephson junctions with good IcRn products. One objective of this thesis was to fabricate ...

  • Face recognition using Hidden Markov Models 

    Ballot, Johan Stephen Simeon (Stellenbosch : University of Stellenbosch, 2005-03)
    This thesis relates to the design, implementation and evaluation of statistical face recognition techniques. In particular, the use of Hidden Markov Models in various forms is investigated as a recognition tool and ...

  • Facial Feature Reconstruction using Structure from Motion 

    Rautenbach, Pieter Albertus (Stellenbosch : University of Stellenbosch, 2005-03)
    Structure from Motion suggests that an object or scene’s three-dimensional structure can be determined from its observed two-dimensional motion. Human efforts, manifested in computer algorithms, try to mimic the ...

  • Fast accurate diphone-based phoneme recognition 

    Du Preez, Marianne (Stellenbosch : University of Stellenbosch, 2009-03)
    Statistical speech recognition systems typically utilise a set of statistical models of subword units based on the set of phonemes in a target language. However, in continuous speech it is important to consider co-articulation ...

  • Fast analysis of a compound large reflector antenna 

    Alphonse, Stephanie (Stellenbosch : Stellenbosch University, 2012-03)
    ENGLISH ABSTRACT: The o set Gregorian dual re ector antenna is eminently well suited to a radio telescope antenna application as it o ers a narrow beam width pattern (i.e high gain) and good e ciency. The focus of this ...

  • Fault tolerant adaptive control of an unmanned aerial vehicle 

    Basson, Willem Albertus (Stellenbosch : Stellenbosch University, 2011-12)
    ENGLISH ABSTRACT: This thesis presents the development of an adaptive longitudinal control system for an unmanned aerial vehicle (UAV). The project forms part of a research effort at Stellenbosch University into different ...

  • Fault tolerant flight control of a UAV with asymmetric damage to its primary lifting surface 

    Beeton, Wiaan (Stellenbosch : Stellenbosch University, 2013-12)
    ENGLISH ABSTRACT: In this thesis the design, analysis, implementation, and verification of a fault-tolerant unmanned aerial vehicle (UAV) flight control system which is robust to structural damage causing the natural ...

  • Feasibility of the PowerPc 603ETM for a LEO satellite on-board computer 

    Vos, Jacu (Stellenbosch : Stellenbosch University, 2002-12)
    ENGLISH ABSTRACT: For space designs, just as for terrestrial applications, the appetite for more computing power is virtually insatiable. Further, like portable applications, space use implies severe power constraints. ...

  • Feasibility of using an ARM processor in a micro satellite on-board computer 

    Barnard, Arno (Stellenbosch : Stellenbosch University, 2001-12)
    ENGLISH ABSTRACT: After SUNSAT was launched in 1999 and the possibility of developing another micro satellite emerged, areas of possible improvement were identified. Among the suggestions that emerged was the idea of ...

  • Feasibility study of a moon sensor for satellite attitude determination 

    Skinner, Robert Edmid (Stellenbosch : Stellenbosch University, 2005-12)
    ENGLISH ABSTRACT: The purpose of this study was to investigate the feasibility of a moon sensor as an alternative or supplemental sensor to supply attitude information to a satellite. The visibility of the moon was ...

  • Feature tracking and pattern registration 

    Wagener, Dirk Wolfram (Stellenbosch : Stellenbosch University, 2003-11)
    ENGLISH ABSTRACT: The video-based computer vision patient positioning system that is being developed at iThemba Laboratories, relies on the accurate, robust location, identification and tracking of a number of markers on ...

  • Feedback control of a shape memory alloy actuator for control surface deflection 

    Ehlers, Righardt Frederick (Stellenbosch : Stellenbosch University, 2012-03)
    ENGLISH ABSTRACT: The successful design, implementation and testing of a feedback control system for tab-deflection control of a shape memory alloy (SMA) based control surface actuator is presented. The research is ...

  • Feedforward active noise reduction for aircraft headsets 

    Smith, Corne J. (Stellenbosch : Stellenbosch University, 2003-12)
    ENGLISH ABSTRACT: Active noise reduction (ANR) is a method of cancelling acoustic noise in a defined enclosure. Two methods exist to implement ANR, they are the analog feedback method and the digital feedforward method. ...

  • Field implementation of a transient voltage measurement facility using HV current transformers 

    Siebrits, F. B.(Francois Bart) (Stellenbosch : Stellenbosch University, 2003-12)
    ENGLISH ABSTRACT: The bandwidth of standard HV measurement devices such as capacitive voltage transformers is too limited in order to measure wideband phenomena. This thesis is concerned with the investigation into a ...

  • Finite element analysis of a wing type structure with experimental verification of results. 

    Baumgartner, Edward Michael Ernst (Stellenbosch : Stellenbosch University, 1976-06)
    INTRODUCTION: The advent of the high speed computer has revolutionized structural design in all spheres of Engineering. Up till then structural stress analysis was limited to over-simplification of the structure in ...

  • A finite element based optimisation tool for electrical machines 

    Gerber, Stiaan (Stellenbosch : University of Stellenbosch, 2011-03)
    ENGLISH ABSTRACT: Knowledge of the magnetic fields in the domain of electrical machines is required in order to model machines accurately. It is difficult to solve these fields analytically because of the complex geometries ...

  • Finite element tearing and interconnecting for the electromagnetic vector wave equation in two dimensions 

    Marchand, Renier Gustav (Stellenbosch : University of Stellenbosch, 2007-03)
    The finite element tearing and interconnect(FETI) domain decomposition(DD) method is investigated in terms of the 2D transverse electric(TEz) finite element method(FEM). The FETI is for the first time rigorously derived ...

  • A fixed-point DSP architecture for software-defined radio 

    Kriegler, Wouter (Stellenbosch : University of Stellenbosch, 2009-03)
    Due to ever evolving wireless communication standards and technologies, the need for more flexible radio terminals are becoming more sought after in order to adapt to these new standards. Software-defined radio offers a ...

  • Flicker mitigation in industrial systems 

    De Wit, Leon (Stellenbosch : University of Stellenbosch, 2006-03)
    This thesis investigates the compensation of voltage flicker in an industrial environment. Industrial loads draw progressively less sinusoidal currents. These currents cause non-sinusoidal voltage drop over the line ...