Yaoliang Song received the B.Eng., M.Eng., and Ph.D. degrees in electrical engineering from the Nanjing University of Science and Technology, China, in 1983, 1986, and 2000, respectively. From 2004 to 2005, he was a Research Fellow with the Department of Engineering Science, University of Oxford, UK. He is currently a Professor at the Nanjing University of Science and Technology, where he is also the Head of the UWB Radar Imaging Group. His research interests include UWB communication, UWB radar imaging, and advanced signal processingIgor Semchenko is Professor at the Department of General Physics, Francisk Skorina Gomel State University, Gomel, Belarus. He is Deputy Director of the State Scientific and Production Association of Optics, Optoelectronics and Laser Technology, National Academy of Sciences of Belarus. He is a corresponding member of the National Academy of Sciences of Belarus. His research interests are focused on the fields of electrodynamics of artificial anisotropic structures and metamaterialsSergei Khakhomov is Professor at the Optics Department and Rector of Francisk Skorina Gomel State University, Belarus. He is the author of more than 390 scientific works, including four monographsDr Lei Wang is Associate Professor at Nanjing University of Science and Technology, China. Research interests include millimeter wave technology, radar theory and system design, signal information processing technology. Dr Wang has led and participated in multiple pre research projects, National Natural Science Foundation projects, and scientific and technological cooperation projects; Dr Wang holds multiple national invention and utility model patents