• Probabilistic conflict detection for commercial aircraft near airports 

      Pienaar, Leanne Jane (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: Increasing air traffic and urbanisation has led to a cluttered airspace, particularly near airports, where both complex terrain and multiple moving obstacles are frequent. Accurately and efficiently ...
    • A probabilistic graphical model approach to multiple object tracking 

      Louw, Everhard Johann (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT: Probabilistic graphical models (PGMs) provide a framework for efficient probabilistic inference using graphs that correspond to factorised representations of high-dimensional probability distributions. The ...
    • Probabilistic Outlier Removal for Stereo Visual Odometry 

      Chiu, Alexander (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT: The field of autonomous navigation is currently receiving significant attention from researchers in both academia and industry. With an end goal of fully autonomous vehicle systems, an increased effort ...
    • Probe characterisation, design and evaluation for the real-time quality Indication of milk 

      Van der Westhuyzen, Petrus Johannes (Stellenbosch : University of Stellenbosch, 2006-12)
      In order to rapidly detect, monitor and predict changes in milk as it ferments, sensors would need to be designed specifically for milk. To this end, invasive surgical stainless steel probes were investigated and the ...
    • Probes in HF metrology 

      Rossouw, Daniel Johannes (Stellenbosch : University of Stellenbosch, 2010-12)
      ENGLISH ABSTRACT: Flanged coaxial probes are widely used to conduct accurate, broadband permittivity measurements of various dielectric materials. A metrology study, discussed in [1], revealed that small perturbations ...
    • A process for the manufacture of high-temperature bi-epitaxial Josephson junctions 

      De Villiers, Hendrik Adrianus Cornelis (Stellenbosch : University of Stellenbosch, 2007-03)
      This thesis is concerned with the fabrication of high temperature bi-epitaxial grain boundary Josephson junctions for use in superconducting microelectronic circuits. It aims to provide a proof-of-concept manufacturing ...
    • Processing of onboard images to assist automatic forward motion compensation for micro-satellites 

      Mouton, Christiaan J. (Stellenbosch : Stellenbosch University, 2003-03)
      ENGLISH ABSTRACT: South Africa's first micro satellite, SUNSAT, was operational in orbit for 23 months since its NASA-sponsored launch on February 23, 1999. SUNSAT is a graduate studentdeveloped satellite from the ...
    • Proof of concept : home automation solution with potential for seamless integration and vast expansion 

      Sawyer, Guy (Stellenbosch : Stellenbosch University, 2014-12)
      ENGLISH ABSTRACT: The ever-increasing existence of electronic systems and devices within the residential environment, along with the human desire to simplify life and daily routine, is generating increased interest in ...
    • Protection unit for radiation induced errors in flash memory systems 

      Bryer, Bevan (Stellenbosch : Stellenbosch University, 2004-12)
      ENGLISH ABSTRACT: Flash memory and the errors induced in it by radiation were studied. A test board was then designed and developed as well as a radiation test program. The system was irradiated. This gave successful ...
    • Pulse power device characterization for amplifier design 

      Fourie, Paul (Stellenbosch : University of Stellenbosch, 2004-12)
      ENGLISH ABSTRACT: Bi-polar Si transistors optimized for pulse conditions is still the most popular choice as amplification element in the final stages of solid-state radar amplifiers in L and S band. With the radar market ...
    • PWM converter for a highly non-linear plasma load 

      Van der Merwe, Wim (Stellenbosch : University of Stellenbosch, 2005-12)
      This thesis discuss an investigation into the applicability of modern high frequency power conversion technology in the plasma mineral processing industry. The physics governing the plasma in a processing environment are ...
    • A Python implementation of graphical models 

      Gouws, Almero (Stellenbosch : University of Stellenbosch, 2010-03)
      ENGLISH ABSTRACT: In this thesis we present GrMPy, a library of classes and functions implemented in Python, designed for implementing graphical models. GrMPy supports both undirected and directed models, exact and ...
    • Quantization effects on beamforming in dense phased arrays 

      Wilke, Cornelis Rossouw (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT: Reflector-based radio telescopes have traditionally been the instrument of choice in Radio Astronomy since around the 1960’s. However, in particular for frequencies below around 1 GHz, a new generation ...
    • Radiation tolerant implementation of a soft-core processor for space applications 

      Van der Horst, Johannes Gerhardus (Stellenbosch : University of Stellenbosch, 2007-03)
      The availability of high density FPGAs has made the use of soft-core processors an attractive proposition for the low volume space market. Soft-core processors combine the power of programmable logic with the ease of use ...
    • Rapid modelling of the target tracking loop of a passive IR guided SAM, using artificial neural systems 

      Jones, Thomas (Stellenbosch : Stellenbosch University, 1999-12)
      ENGLISH ABSTRACT: This thesis deals with the modelling of the target tracking system of a specific passive infrared guided surface to air missile (SAM). Modelling is accomplished by making use of rapid modelling principles and ...
    • Rapid single flux quantum very large scale integration 

      Gross, Peter Alan (Stellenbosch : Stellenbosch University, 2002-12)
      ENGLISH ABSTRACT: Very Large Scale Integration (VLSI) of the Rapid Single Flux Quantum (RSFQ) superconducting logic family is researched. Insight into the design methodologies used for large-scale digital systems and ...
    • Real time segmentation of heart sounds 

      Fourie, David (Stellenbosch : Stellenbosch University, 2015-12)
      ENGLISH ABSTRACT: The poor state of the healthcare system in South Africa has resulted in unacceptable high levels of infant mortality. Congenital heart disease is one of the main contributions to these high rates of ...
    • Real-time occupancy grid mapping using LSD-SLAM 

      Hull, Graham (Stellenbosch : Stellenbosch University, 2017-12)
      ENGLISH ABSTRACT: This thesis investigates the use of semi-dense depth data from monocular vision using large scale direct SLAM (LSD-SLAM) to create accurate occupancy grid maps for autonomous navigation, in real-time. ...
    • Real-time Software Hand Pose Recognition using Single View Depth Images 

      Alberts, Stefan Francois (Stellenbosch : Stellenbosch University, 2014-04)
      ENGLISH ABSTRACT: The fairly recent introduction of low-cost depth sensors such as Microsoft’s Xbox Kinect has encouraged a large amount of research on the use of depth sensors for many common Computer Vision problems. ...
    • Recommender systems with Bayesian aspect models and the effect of approximate inference 

      Verrezen, Dylan (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT: Recommender systems form an important part of the modern world. These systems allow users to find relevant items in often huge item collections. Collaborative filtering is a pervasive and popular form ...