Now showing items 31-40 of 78
Power line communication channel modelling.
The design and construction of a cryostat for thermal battery investigations.
A test cryostat was constructed to investigate the potential of a locally made thermal battery. A thermal battery is proposed to be a useful component in the construction of future superconducting fault current limiter ...
Quantifying steganographic embedding capacity in DCT-based embedding schemes.
Digital image steganography has been made relevant by the rapid increase in media sharing over the Internet and has thus experienced a renaissance. This dissertation starts with a discussion of the role of modern digital ...
Modeling and torque control implementtion for an 8/6 switched reluctance motor.
This thesis begins with a brief introduction of the basic principles of operation of SRMs, and explains how flux characteristics are derived from voltage and current measurements, and presents results obtained from an ...
Cooperative diversity techniques for future wireless communications systems.
Multiple-input multiple-output (MIMO) systems have been extensively studied in the past decade. The attractiveness of MIMO systems is due to the fact that they drastically reduce the deleterious e ects of multipath fading ...
Obstacle avoidance and trajectory optimisation for a power line inspection robot.
This dissertation presents the research, development and application of trajectory creation, obstacle avoidance and trajectory optimisation methods for an existing serial manipulator power line inspection robot (PLIR). The ...
Physical layer forward error correcetion in DVB-S2 networks.
The rapid growth of wireless systems has shown little sign of ceasing, due to increased consumer demand for reliable interactive services. A key component of the development has centered on satellite networks, which ...
The impact of network changes on power quality and compensation device perfomance.
This dissertation describes the impact of changing network configuration on power quality and performance of existing compensation devices in the transmission network. The underlying theory was assessed and thereafter the ...
Robust multivariable control design : an application to a bank-to-turn missile.
Multi-input multi-output (MIMO) control system design is much more difficult than single-input single output (SISO) design due to the combination of cross-coupling and uncertainty. An investigation is undertaken into ...
The design and construction of an experimental MgO cold cathode X-ray tube for use in XRF spectrometry.
An introduction to the fundamental concepts of X-ray physics and X-ray tube design is given. This discussion also includes a brief description of various X-ray tube types available commercially for a number of different ...