Browsing Faculty of Engineering by Title

Now showing items 1-20 of 2414

    • A 10 GHz oversampling delta modulating analogue-to-digital converter implemented with hybrid superconducting digital logic 

      Fourie, Coenrad Johann (Stellenbosch : Stellenbosch University, 2001-03)
      ENGLISH ABSTRACT: Rapid Single Flux Quantum (RSFQ) logic cells are discussed, and new cells developed. The expected yield of every cell is computed through a Monte Carlo analysis, and where necessary these cells are ...

    • 10 kW L-Band planar power combiner 

      Fourie, Gerhardus Johannes (Stellenbosch : University of Stellenbosch, 2006-12)
      This thesis relates to the design and characterization of a 10 kW L-band power combiner consisting of 8 input ports. The design is implemented in a non-radial planar transmission line architecture and operates between ...

    • 2D Edge-based finite elements for guided and scattered wave problems 

      Hansmann, Riana Helena (Stellenbosch : Stellenbosch University, 1999-03)
      ENGLISH ABSTRACT: This thesis may be divided into two parts: the first describes the Finite Element Method (FEM) and its application to guided wave problems. The second part is devoted to scattering configurations, ...

    • 2D Modelling of turbulant transport of cohesive sediments in shallow reservoirs 

      De Villiers, J. W. L. (Stellenbosch : University of Stellenbosch, 2006-12)
      Modelling of the transport of fine cohesive sediments, as found in most South African reservoirs, has not been well developed. This is because the transport processes that are involved are complex and the theories not ...

    • A 3-axis attitude control system hardware design for a CubeSat 

      Gerber, Jako (Stellenbosch : Stellenbosch University, 2014-12)
      ENGLISH ABSTRACT: With CubeSats becoming popular as a cheap alternative to larger satellites, the need for advanced miniature attitude determination and control systems (ADCS) arises to meet the pointing requirements of ...

    • 3-Axis geomagnetic magnetometer system design using superconducting quantum interference devices 

      Kilian, Anton Theo (Stellenbosch : Stellenbosch University, 2014-04)
      ENGLISH ABSTRACT: This work discusses the design of a 3-axis Geomagnetometer SQUID System (GSS), in which HTS SQUIDs are used unshielded. The initial GSS installed at SANSA was fully operable, however the LN2 evaporation ...

    • 3-D face recognition 

      Eriksson, Anders (Stellenbosch : Stellenbosch University, 1999-12)
      ENGLISH ABSTRACT: In recent years face recognition has been a focus of intensive research but has still not achieved its full potential, mainly due to the limited abilities of existing systems to cope with varying pose ...

    • 3D tracking between satellites using monocular computer vision 

      Malan, Daniel Francois (Stellenbosch : University of Stellenbosch, 2005-03)
      Visually estimating three-dimensional position, orientation and motion, between an observer and a target, is an important problem in computer vision. Solutions which compute threedimensional movement from two-dimensional ...

    • 3D-feature recogntion from measured data 

      Janssens, M.; Van Wijck, W.; Du Preez, N. D. (Department of Industrial Engineering, Stellenbosch University, 1999)
      ENGLISH ABSTRACT: This paper presents a method to automatically extract analytical entities like planes, spheres and cylinders from a file containing a cloud of points. The method facilitates the manipulation and reduction ...

    • A computational architecture for real-time systems 

      Mostert, Sias (Stellenbosch : Stellenbosch University, 2000-12)
      ENGLISH ABSTRACT: The engineering of dependable real-time systems for mission critical applications is a resource intensive and error prone process. Achieving dependability requires a general consensus on the correctness ...

    • A multi-mode attitude determination and control system for small satellites 

      Steyn, Willem Hermanus (Stellenbosch : Stellenbosch University, 1995-12)
      ENGLISH ABSTRACT: New advanced control techniques for attitude determination and control of small (micro) satellites are presented. The attitude sensors and actuators on small satellites are limited in accuracy and ...

    • Accelerated testing of an asphalt pavement with the third-scale model mobile load simulator (MMLS3) 

      Walubita, Lubinda F. (Stellenbosch : Stellenbosch University, 2000-12)
      ENGLISH ABSTRACT: Accelerated pavement testing (APT) is the application of a wheel loading, to a prototype or actual layered, structural pavement system to determine pavement response and performance under controlled, ...

    • Acceleration based manoeuvre flight control system for unmanned aerial vehicles 

      Peddle, Iain K. (Stellenbosch : Stellenbosch University, 2008-12)
      ENGLISH ABSTRACT: A strategy for the design of an effective, practically feasible, robust, computationally efficient autopilot for three dimensional manoeuvre flight control of Unmanned Aerial Vehicles is presented. The ...

    • Acceleration based manoeuvre flight control system for unmanned aerial vehicles 

      Peddle, Iain K. (Stellenbosch : Stellenbosch University, 2008-12)
      A strategy for the design of an effective, practically feasible, robust, computationally efficient autopilot for three dimensional manoeuvre flight control of Unmanned Aerial Vehicles is presented. The core feature of ...

    • Accessibility index to public facilities for prioritisation of community access road development 

      Nemvumoni, Fhatuwani Lesley (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT: A number of studies have acknowledged the positive impacts that rural roads have on the social and economic development of a region. This impact is due to the increased accessibility offered by road ...

    • Accounting for moment-rotation behaviour of connections in portal frames 

      Albertyn, Heindrich L.; Haas, T. N.; Dunaiski, Peter E. (South African Institution of Civil Engineering, 2014-04)
      Portal frames are steel structures used to construct industrial buildings. Conventional analysis techniques used by practising engineering professionals assume that the eave, ridge and base connections are either infinitely ...

    • Accounting for proof test data in Reliability Based Design Optimization 

      Ndashimye, Maurice (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: Recent studies have shown that considering proof test data in a Reliability Based Design Optimization (RBDO) environment can result in design improvement. Proof testing involves the physical testing of ...

    • Accurate autonomous landing of a fixed-wing unmanned aerial vehicle 

      Alberts, Frederik Nicolaas (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 

      De Bruin, Andrew (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 modelling and realisation of a 4th generation wireless communication system 

      Schulze, Shaun (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) ...