1. Division of Computational Physics; Institute for Computational Science, Ton Duc Thang University; Ho Chi Minh City Vietnam
2. Faculty of Electrical and Electronics Engineering; Ton Duc Thang University; Ho Chi Minh City Vietnam
3. School of Electrical and Electronic Engineering; the University of Adelaide; Adelaide South Australia 5005 Australia
4. Defence Science and Technology Group (DSTG); Edinburgh South Australia Australia