YANG Fei (杨飞) was born in Sichuan, China, in 1982. He received Bachelor Degree from University of Electronic Science and Technology of China (UESTC) in 2004. He is currently a post-graduate student with UESTC. LI Le-min (李乐民) was born in Zhejiang. China, in 1932. He is currently a professor with UESTC and a member of the Chinese Academy of Engineering. WANG Sheng (王晟) was born in Sichuan, China, in 1971. He is currently a professor with UESTC. GUO Lei (郭磊) was born in Sichuan, China, in 1980. He received Doctorate Degree from UESTC in 2006. He is currently an associate professor with Northeast University.