1. School of Aeronautics and Astronautics, University of Electronic Science and Technology of China, Chengdu, China
2. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
3. School of Electronic Information and Electrical Engineering, Chengdu University, Chengdu, China
4. School of Electrical Engineering, Chungbuk National University, Cheongju, South Korea
5. Sinopec Xinan Oilfield Service Corporation, Chengdu, China
6. School of Mathematics Sciences, University of Electronic Science and Technology of China, Chengdu, China