1. Department of Land & Joint, African Defence Systems, Midrand, South Africa
2. Department of Electrical and Electronic Engineering, University of Johannesburg, Johannesburg, South Africa
3. Graduate School of Electrical and Electronic Engineering, Tshwane University of Technology, Pretoria, South Africa
4. Destiny Systems Discovery Health, Sandton, South Africa
5. Department of Applied Mathematics, University of Johannesburg, Johannesburg, South Africa