1. Durban University of Technology,Department of Electrical Power Engineering,Durban,South Africa,4000
2. Durban University of Technology,Department of Electronic and Computer Engineering,Durban,South Africa,4000
3. French-South Africa Institute of Technology (F'SATI)/Africa Space Innovation Centre (ASIC), Cape Peninsula University of Tech.,Dept of Electrical Electronic and Computer Engineering,Bellville,South Africa,7535