Now showing items 1-9 of 9
WiMAX performance analysis in a selected rural area in South Africa.
Bringing broadband access to rural and remote communities has been a very difficult task due to the high cost of installation and complete lack of infrastructure in certain areas. Options currently under serious consideration ...
An investigation of the influence of silver doping on the intergranular 'weak-link' properties of the superconducting system Y1Ba2Cu307-x.
High-temperature superconducting materials have found considerable technological application and still have a largely unrealised potential. The key to unlocking this potential depends on a better understanding of their ...
A study of rain attenuation on terrestrial paths at millimetric wavelengths in South Africa.
Rain affects the design of any communication system that relies on the propagation of electromagnetic waves. Above a certain threshold of frequency, the attenuation due to rain becomes one of the most important limits to ...
Improved transmission line protection performance concerning high resistance faults.
ESKOM has relied primarily on impedance-based measurement protection relays for the protection of transmission lines. One of the main disadvantages of distance relays is the limited fault resistance measurement capability. ...
Modelling and analysis of inverter-based facts devices for power system dynamic studies.
Flexible AC Transmission Systems (FACTS) involves the incorporation of power-electronic controlled devices into ac power transmission systems in order to extend the power-transfer capability of these systems beyond their ...
Rain attenuation effects in considering the feasibility of stratospheric communication platforms for rural areas of South Africa.
Also known as High Altitude Platform Stations (HAPS), these systems employ unmanned or manned, solar or fuel energy airships or aircraft carrying payloads with transponders and antennas. These remote airships ...
Analysis of high voltage current transformer under deteriorating and failed insulation.Analysis of high voltage current transformer under deteriorating and failed insulation.
Data pertaining to the number of failed high voltage current transformers installed in
Adaptive multiple symbol decision feedback for non-coherent detection.
Non-coherent detection is a simple form of signal detection and demodulation for digital communications. The main drawback of this detection method is the performance penalty incurred, since the channel state information ...