1. Department of Electrical Engineering, Blue Nile University, Ad Damazin P.O. Box 143, Sudan
2. Department of Mechanical Engineering, Blue Nile University, Ad Damazin P.O. Box 143, Sudan
3. Centre for Intelligent Signal and Imaging Research (CISIR), Universiti Teknologi PETRONAS (UTP), Bandar Seri Iskandar 32610, Malaysia
4. Electrical and Electronic Engineering Department, Universiti Teknologi PETRONAS (UTP), Bandar Seri Iskandar 32610, Malaysia