Browsing Masters Degrees (Electrical and Electronic Engineering) by Title

Now showing items 436-455 of 630

    • Machine learning approach to radio frequency interference(RFI) classification in Radio Astronomy 

      Wolfaardt, Cornelis Johannes (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: Radio frequency interference (RFI) presents a large problem for radio telescopes. Interference prevents observations from being made, or extends the duration required for observations. This thesis ...

    • Magnetic field visualization for superconducting circuits 

      Van Staden, Ruben (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: Ambient magnetic fields, trapped flux and fields generated by bias and ground return currents affect superconducting electronic circuits negatively. Analysis of current distribution in bias lines and in ...

    • Markerless augmented reality on ubiquitous mobile devices with integrated sensors 

      Van Wyk, Carel (Stellenbosch : University of Stellenbosch, 2011-03)
      ENGLISH ABSTRACT: The computational power of mobile smart-phone devices are ever increasing and high-end phones become more popular amongst consumers every day. The technical speci cations of a high-end smart-phone today ...

    • A mass memory system for satellites using field programmable gate arrays and synchronous DRAM 

      Vosloo, Jacobus Jurie (Stellenbosch : Stellenbosch University, 2006-12)
      ENGLISH ABSTRACT: Technological advances have increased storage requirements on board satellites tremendously in recent years. Storage normally used on satellites is expensive and often complex and rigid hardware systems ...

    • Mathematical and numerical analysis of electrospraying electrodynamics 

      Pieterse, Cornelius Louwrens (Stellenbosch : Stellenbosch University, 2014-12)
      ENGLISH ABSTRACT: The electrodynamics of arbitrary, point-to-plane electrospraying geometries, were investigated in this research both analytically and numerically. Electrospraying is the process during which particles ...

    • Mesh termination schemes for the finite element method in electromagnetics 

      Young, Andre (Stellenbosch : Stellenbosch University, 2007-12)
      The finite element method is a very efficient numerical tool to solve geometrically complex problems in electromagnetics. Traditionally the method is applied to bounded domain problems, but it can also be forged to solve ...

    • A Method for accurate measurement of heliostat mirror orientation 

      Swart, Benjamin Dawid (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT: Heliostat tracking is a critical component of the solar field of concentrating solar power central receiver systems and can be the source of significant losses in power and profit when it lacks the ...

    • Methods to extract maximum electrical energy from PV panels on the earth's surface 

      Bekker, Bernard (Stellenbosch : Stellenbosch University, 2004-12)
      ENGLISH ABSTRACT: This thesis investigates methods to extract the maximum amount of electrical energy from a py panel. The thesis is divided into four parts, focussing on different aspects relating to this topic. The ...

    • Metrology and modelling of high frequency probes 

      Badenhorst, J. (Stellenbosch : Stellenbosch University, 2008-03)
      This study investigates high frequency probes through good metrology and computation software such as CST. A factor that can strongly influence the accuracy of measurements, is common mode (CM) current. Therefore, the ...

    • Micro-satellite data handling : a unified information model 

      Van der Merwe, Benjamin (Stellenbosch : Stellenbosch University, 2001-04)
      ENGLISH ABSTRACT: This thesis describes various software technologies implemented, or specifically developed, for the SUNSAT micro-satellite mission. With the discussion centered on the Mission Operations System functions ...

    • Microwave data transmission by means of an optimal bandwidth multichannel QPSK system 

      Malan, Jacques de Villiers (Stellenbosch : Stellenbosch University, 2004)
      ENGLISH ABSTRACT: The increase in the complexity and functionality of new satellites leads to a growing demand for a digital communication system operating at a much higher bit rate than before. The main purpose of this ...

    • Microwave frequency discriminators 

      Geldenhuys, N. D. (Stellenbosch : Stellenbosch University, 2001-03)
      ENGLISH ABSTRACT: The topic of microwave frequency discriminators is introduced. Various applications and implementation techniques of these devices are given and discussed. This thesis may serve as reference foundation ...

    • Microwave heating of multiphase materials : modelling and measurement 

      Louw, Willem J. (Stellenbosch : Stellenbosch University, 2005-12)
      ENGLISH ABSTRACT: Both coaxial probe and waveguide (WG) measurement systems for electric and magnetic material property extraction were investigated. These measurement techniques were used to determine electrical properties ...

    • Middleware for the SUNSAT field station 

      Cardoza, Andrew Robert (Stellenbosch : Stellenbosch University, 2001-12)
      ENGLISH ABSTRACT: SRMA currently used on the SUNSAT field station is an effective MAC layer protocol but lacks several features. Sufficient support for flexible communication, acknowledgement of individual data packets, ...

    • Minimum congestion routing for a 17 GHz wireless ad hoc network 

      Kotze, Daniel Johannes Van Wyk (Stellenbosch : University of Stellenbosch, 2011-03)
      ENGLISH ABSTRACT: An investigation is made to find a suitable routing protocol for a millimeter wave ad hoc wireless network. It is discovered that a hierarchical routing protocol is ideal for a high node density. Due to ...

    • Mixed-potential integral equation technique for hybrid microstrip-slotline mutli-layered circuits with horizontal and vertical shielding walls 

      Schoeman, Marlize (Stellenbosch : University of Stellenbosch, 2003-12)
      ENGLISH ABSTRACT: A complete mixed-potential integral equation formulation for the analysis of arbitrarily shaped scatterers in a planarly layered medium is presented. The integral equation is able to solve for simultaneous ...

    • Mobile radio data network for documentation display 

      Du Toit, Rene (Stellenbosch : Stellenbosch University, 2000-04)
      ENGLISH ABSTRACT: This product is designed as an educational tooL It was developed to make a classroom more organised. Better and easier communication between the teacher and the students can be established, as well as ...

    • Model predictive control of AC-to-AC converter voltage regulator 

      Chewele, Youngie Klyv (Stellenbosch : Stellenbosch University, 2014-04)
      ENGLISH ABSTRACT: The development of fast and efficient processors, programmable devices and high power semiconductors has led to the increased use of semiconductors directly in the power supply path in order to achieve ...

    • Modelling and control of doubly-fed induction generator systems in wind turbine applications 

      Mbukani, Mwana Wa Kalaga (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT: The need to reduce the world's carbon foot print has led to a significant rise in wind energy generation. The doubly-fed induction generator (DFIG) is one of the most popular wind turbine generators ...

    • Modelling and design of an eddy current coupling for slip-synchronous permanent magnet wind generators 

      Mouton, Zac (Stellenbosch : Stellenbosch University, 2013-03)
      ENGLISH ABSTRACT: Slip-synchronous permanent magnet generators (SS-PMG) is a recently proposed direct-grid connected direct-drive generator topology for wind power applications. It combines a permanent magnet synchronous ...