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Structure from motion estimation using a nonlinear Kalman filter
(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 ...
Prediction and measurement of power line carrier signal attenuation and fluctuation
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: A frequency domain Power Line Carrier (PLC) simulation program, with the
ability to simulate signal attenuation including the coupling equipment, was
developed. This simulation program was put to the ...
Establishing a process for the fabrication of high-quality HTc SQUIDs
(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
(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 ...
Simple broadband measurements of balanced loads using a network analyzer
(Stellenbosch : Stellenbosch University, 2001-04)
ENGLISH ABSTRACT: Balanced loads such as antennas normally require baluns when they are measured. For
wide band applications, designing and building a balun complicates the measurement and
introduces errors. A simple ...
The placing of line surge arresters and fuses on 11 and 12 kV lines to protect equipment against lightning
(Stellenbosch : Stellenbosch University, 2001-03)
ENGLISH ABSTRACT: Unshielded distribution lines has a poor performance during lightning activity. Lightning
initiates flashovers between the phases and earth and causes line breakers to trip several
times during a ...
Natural balancing of the neutral-point-clamped converter
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: The three-level neutral-point-clamped(NPC) converter, being a widely used multilevel
inverter, received a lot of attention recently due to problems associated with de-link
capacitor voltage balancing. ...
Shunt active power filtering algorithms for unbalanced, non-linear loads
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: This thesis presents the design and implementation of shunt active power filtering algorithms for
unbalanced, non-linear loads.
A three-phase four-wire topology is developed in the dqO space. Based on ...
Phonene-based topic spotting on the switchboard corpus
(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 ...
Investigation of a high-speed serial bus between satellite subsystems
(Stellenbosch : Stellenbosch University, 2003-04)
ENGLISH ABSTRACT: The aim of this thesis is to investigate the implementation of a high-speed serial bus based
on the IEEE Std 1394-1995 specification for use in a microsatellite.
Earth observation microsatellites carry ...