Browsing Masters Degrees (Electrical and Electronic Engineering) by Title
Now showing items 8-27 of 693
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Accurate autonomous landing of a fixed-wing unmanned aerial vehicle
(Stellenbosch : Stellenbosch University, 2012-12)ENGLISH ABSTRACT: This thesis presents the analysis, design, simulation and practical implementation of a control system to achieve an accurate autonomous landing of a fixed-wing unmanned aerial vehicle in the presence ... -
Accurate autonomous landing of a fixed-wing unmanned aircraft under crosswind conditions
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: This thesis presents the design, implementation and verification of an autopilot system with strong disturbance rejection characteristics, capable of landing a fixed-wing unmanned aircraft accurately under ... -
Accurate localisation of a multi-rotor using monocular vision
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: The mid-frequency aperture array (MFAA) is planned for phase two of the square kilometre array project, which has its design phase scheduled for 2018. The MFAA's antenna arrays need to be characterised ... -
Accurate modelling and realisation of a 4th generation wireless communication system
(Stellenbosch : University of Stellenbosch, 2006-12)A great demand exits for higher data rates and increased reliability of future consumer based mobile communication systems while being more bandwidth and power efficient. Orthogonal frequency division multiplexing (OFDM) ... -
Active capacitor voltage stabilisation in a medium-voltage flying-capacitor multilevel active filter
(Stellenbosch : University of Stellenbosch, 2005-03)A switching state substitution must be developed that will make use of both single-phase redundancies and three-phase redundancies in the flying-capacitor topology. Losses should be taken into consideration and the ... -
An active receiving antenna for borehole pulsed radar applications
(Stellenbosch : University of Stellenbosch, 2002-12)An efficient radiating strucllire was needed for borehole pulsed radar applications in the 10-100 MHz frequency band. Both resistively loaded and insulated wire antennas were investigated and an active antenna is proposed ... -
Adaptation, optimisation and simulation of the CSMA/CA protocol for a low earth orbit satellite UHF link
(Stellenbosch : University of Stellenbosch, 2006-12)A low earth orbit satellite is to provide the telecommunications link to facilitate email services to rural areas, where the infrastructure necessary for e-mail is lacking (e.g. no telephone lines). Communication time ... -
Adaptive estimation of speech parameters
(Stellenbosch : Stellenbosch University, 1994-03)ENGLISH ABSTRACT: Linear predictive coding(LPC), and transformations of it, is currently the most popular way of analysing speech signals. Major limitations of using a frame-based technique are that each frame is analysed ... -
Adaptive noise and interference cancellation for mobile communications.
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: In an arena of electronic warfare measures, to inhibit enemy operations as well as provide safety for allied forces from radio triggered explosive devices, interference and noise coupling degrade allied ... -
Advanced control with semi-empirical and data based modelling for falling film evaporators
(Stellenbosch : Stellenbosch University, 2013-03)ENGLISH ABSTRACT: This work focussed on a local multiple chamber falling film evaporator (FFE). The FFE is currently under operator control and experiencing large amounts of lost production time due to excessive fouling. ... -
Advanced modelling of a borehole radar environment with the finite difference time domain method
(Stellenbosch : University of Stellenbosch, 2001-12)Over the last decade, as the mining industry of South Africa is moving to ever deeper mines, the borehole radar is becoming an increasingly important field of research. In December 2000, Burger completed his thesis on ... -
Advanced take-off and flight control algorithms for fixed wing unmanned aerial vehicles
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: This thesis presents the development and implementation of a position based kinematic guidance system, the derivation and testing of a Dynamic Pursuit Navigation algorithm and a thorough analysis of an ... -
Agressive flight control techniques for a fixed wing unmanned aerial vehicle
(Stellenbosch : University of Stellenbosch, 2009-03)This thesis investigates aggressive all-attitude flight control systems. These are flight controllers capable of controlling an aircraft at any attitude and will enable the autonomous execution of manoeuvres such as high ... -
An aircraft based emulation platform and control model for LEO satellite antenna beam steering
(Stellenbosch : University of Stellenbosch, 2010-12)ENGLISH ABSTRACT: A joint project between the KU Leuven and Stellenbosch Universities was at the time of this thesis underway to develop a space borne electronically beam steerable antenna and the associated ground-space ... -
An analysis and comparison of two methods for UAV actuator fault detection and isolation
(Stellenbosch : Stellenbosch University, 2012-12)ENGLISH ABSTRACT: Fault detection and isolation (FDI) is an important aspect of effective fault tolerant control architectures. The Electronic System Laboratory at Stellenbosch University identified the need to study ... -
Analysis and design of a double-sided rotor iron-cored radial flux permanent magnet synchronous wind turbine generator
(Stellenbosch : Stellenbosch University, 2012-03)ENGLISH ABSTRACT: The electromagnetic and mechanical design aspects of an optimally designed double-sided rotor radial flux permanent magnet wind generator with non-overlap iron-cored stator windings are analysed in this ... -
Analysis and design of a voltage regulator based on an AC-to-AC converter
(Stellenbosch : Stellenbosch University, 2003-04)ENGLISH ABSTRACT: This thesis discusses the analysis and design of a voltage regulator based on an AC-to-AC converter. A background study was performed on the best topology for the purpose. The chosen topology was ... -
Analysis and design of axial flux permanent magnet wind generator system for direct battery charging applications
(Stellenbosch : University of Stellenbosch, 2009-03)In this study the focus is on the implementation of a coreless axial ux permanent magnet (AFPM) generator for use in a wind generator application with direct battery charging. The wind generator power system is analysed ... -
Analysis and implementation of the speaker adaptation techniques : MAP, MLLR, and MLED
(Stellenbosch : Stellenbosch University, 2002-12)ENGLISH ABSTRACT: The topic of this thesis is speaker adaptation, whereby speaker-independent speech models are adapted to more closely match individual speakers by utilising a small amount of data from the targeted ... -
Analysis and performance of antenna baluns
(Stellenbosch : Stellenbosch University, 2005-03)ENGLIAH ABSTRACT: Data transmission plays a cardinal role in today's society. The key element of such a system is the antenna which is the interface between the air and the electronics. To operate optimally, many antennas ...
