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Theses and Dissertations (Electrical, Electronic and Computer Engineering): Recent submissions
Now showing items 281-300 of 442
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(University of Pretoria, 2007-11-22)AC-DC converters find application in every day life as a front-end to DC-DC and DC-AC converters. Active three-phase converters shape the three-phase input current to be sinusoidal and to be in-phase with the input voltage, ...
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(University of Pretoria, 2007-11-26)During the race towards the4th generation (4G) cellular-based digital communication systems, a growth in the demand for high capacity, multi-media capable, improved Quality-of-Service (QoS) mobile communication systems ...
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(University of Pretoria, 2011-10-21)Technological innovation that empowers tiny low-cost transceivers to operate with a high degree of utilisation efficiency in multihop wireless mesh networks is contributed in this dissertation. Transmission scheduling and ...
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(University of Pretoria, 2011-02-25)The recent growth in the ambit of modern wireless communication and in particular WLAN (Wireless Local Area Network) systems has created a niche for novel designs that have the capacity to send and/or receive arbitrary ...
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(University of Pretoria, 2011-02-22)The research conducted for this thesis seeks to understand issues associated with integrating a direct spread spectrum system (DSSS) transceiver on to a single chip. Various types of sequences, such as Kasami sequences and ...
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(University of Pretoria, 2011)Jitter requirements have become more stringent with higher speed serial communication links. Reducing jitter, with the main focus on reducing data dependant jitter (DDJ), is presented by employing adaptive finite impulse ...
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(University of Pretoria, 2011-10-12)Many wireless sensor network (WSN) applications depend on knowing the position of nodes within the network if they are to function efficiently. Location information is used, for example, in item tracking, routing protocols ...
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(University of Pretoria, 2006-10-11)Bootstrapping techniques have the potential to accelerate the development of language technology resources. This is of specific importance in the developing world where language technology resources are scarce and linguistic ...
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(University of Pretoria, 2008-10-01)The value of studying elephant vocalizations lies in the abundant information that can be retrieved from it. Recordings of elephant rumbles can be used by researchers to determine the size and composition of the herd, the ...
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(University of Pretoria, 2009-10-02)This thesis presents a robust nonlinear model predictive controller (RNMPC), nominal nonlinear model predictive controller (NMPC) and single-loop proportional-integral-derivative (PID) controllers that are applied to a ...
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(University of Pretoria, 2012-09-26)The growth in global population inevitably increases the consumption of natural resources. The need to provide basic services to these growing communities leads to an increase in anthropogenic changes to the natural ...
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(University of Pretoria, 2011-10-21)This dissertation presents a pumping system operation efficiency improvement solution that includes optimal selection and control of the water pump. This solution is formulated based on the performance, operation, equipment ...
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(University of Pretoria, 2011-10-10)The maintenance schedule of generators in power plants needs to match the electricity demand and needs to ensure the reliability of the power plant at a minimum cost of operation. In this study, a comparison is made between ...
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(University of Pretoria, 2006-09-23)This dissertation investigates a simple LC-matching network for the impedance bandwidth enhancement of microstrip patch antennas. Wideband impedance matching is a standard practice for active circuits. Simple impedance ...
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(University of Pretoria, 2005-09-22)The objective of this study was to provide an adequate model of the k-factor for scientific radio planning in South Africa for terrestrial propagation. An extensive literature survey played an essential role in the research ...
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(University of Pretoria, 2006-09-23)Please read the abstract in the section 00front of this document
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(University of Pretoria, 2005-09-23)Please read the abstract in the section 00front of this document
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(University of Pretoria, 2006-09-23)In the past, the design of PC algorithms for CDMA systems has remained at the physical layer to compensate for slow and fast channel impairments (known as fast PC and slow PC). The TDMA/FDMA manages inter-cell interference ...
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(University of Pretoria, 2006-09-23)Applications that use directory services or relational databases operate in client-server mode where a client requests information from a server, and the server returns a response to the client. Communication between each ...
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(University of Pretoria, 2010-09-20)The aim of the dissertation was to design a realistic, low-complexity non-binary (NB) low density parity check (LDPC) coded space-time-frequency (STF) coded multiple-input multiple-output (MIMO) orthogonal frequency division ...
Now showing items 281-300 of 442