Yunhua Zhang received a B.S. degree in electrical engineering from Xidian University, Xi’an, China, in 1989, and M.S. and Ph.D. degrees in electrical engineering from Zhejiang University, Hangzhou, China, in 1993 and 1995, respectively. He is currently a Professor with the National Space Science Center, Chinese Academy of Sciences, Beijing, China, and the Director of the CAS Key Laboratory of Microwave Remote Sensing. He is also a Professor with the University of Chinese Academy of Sciences, Beijing, China. His research interests include the interferometric imaging radar altimeter system design, signal processing and applications, and new-concept radar technologies (high-resolution radar, interferometric radar, polarimetric radar, compressive sensing radar and noise radar, etc.), as well as radar antennas and computational electromagnetics. Dr. Zhang is the Chief Designer of TG2 InIRA, which is the first space-borne wide-swath radar altimeter launched on September 15, 2016.