1. ATR National Key Lab. of Defense Technology, College of Information Engineering, Shenzhen University, Shenzhen 518060, China
2. Department of Electrical Engineering, Feng Chia University, Taichung 40724, Taiwan
3. Master’s Program, College of Information and Electrical Engineering (Industrial R&D), Feng Chia University, Taichung, Taiwan
4. College of Information Engineering, Shenzhen University, Shenzhen 518060, China