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Structure from motion estimation using a nonlinear Kalman filter

Venter, Chris (Christian Johannes) (Stellenbosch : Stellenbosch University, 2002-12)

ENGLISH ABSTRACT: Structure from Motion is defined as the problem of extracting the 3d motion of a camera moving through a scene, as well as the 3d structure of the scene, from the image sequence produced by the camera ...

Establishing a process for the fabrication of high-quality HTc SQUIDs

Rottier, P. A. (Pieter Adriaan) (Stellenbosch : Stellenbosch University, 2002-12)

ENGLISH ABSTRACT: High-temperature (HTc) SQUID magnetometers are used in the biomedical field of magnetocardiography (MCG). The use of MCG enables a much earlier diagnosis of potentially dangerous conditions than the ...

Attitude sensor and actuator interfacing for micro-satellites

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 ...

Phonene-based topic spotting on the switchboard corpus

Theunissen, M. W. (Marthinus Wilhelmus) (Stellenbosch : Stellenbosch University, 2002-04)

ENGLISH ABSTRACT: The field of topic spotting in conversational speech deals with the problem of identifying "interesting" conversations or speech extracts contained within large volumes of speech data. Typical applications ...

Development of a FEM waveguide code, incorporating Fast Frequency Techniques, for numerical synthesis

Clarke, Samuel R. (Samuel Robert) (Stellenbosch : Stellenbosch University, 2002-12)

ENGLISH ABSTRACT: A computational tool for numerical synthesis via optimization is developed. Only two port waveguide devices are considered. The Finite Element Method (FEM) is used for the electromagnetic analysis. ...

Analysis and implementation of the speaker adaptation techniques : MAP, MLLR, and MLED

Fanner, Robert M. (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 ...

Development of a high speed PCI data capture card for the SUNSAT I ground station

Van der Westhuizen, W. J. (Willem Joseas) (Stellenbosch : Stellenbosch University, 2002-03)

ENGLISH ABSTRACT: The primary payload of the University of Stellenbosch's micro-satellite, SUNSAT I, was a high quality imager, capable of taking stereoscopic images of the surface of the earth. Although the orbit of ...

A constant power, load independent microwave source

Gerber, J. W. (Johann Wessel) (Stellenbosch : Stellenbosch University, 2002-12)

ENGLISH ABSTRACT: In the past few years, a need for consulting on microwave heating has surfaced. Since most specialised microwave components are imported, this adds a hefty price tag in developing the infrastructure ...

The design of a coupled co-axial resonator filter for low earth orbit satellites working at microwave frequencies

Sam, Lwazi (Stellenbosch : Stellenbosch University, 2002-12)

ENGLISH ABSTRACT: Keywords: Coupled resonator filters, Co-axial line resonators, Basic Coupling Design, Co-axial resonator filter The study of the basic dynamics of filters, with the emphasis on coupled resonator filters, ...

An active receiving antenna for borehole pulsed radar applications

Van Wyk, M. D. (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 ...