中文摘要：

Tao Zhang was born in 1971. He received the Ph.D. degree from Xidian University in 2001. Now he is a senior engineer in Xi＇an Electronic Engineering Research Institute. His research interests include radar image, array signal processing, wideband signal processing, and shadow inverse synthetic aperture radar signal processing. Shouhong Zhang was born in 1938. Now he is a professor, Ph.D. student supervisor at National Key Lab of Radar Signal Processing, Xidian University. His research interests include radar system, array signal processing, and shadow inverse synthetic aperture radar signal processing. Binfeng Luo was born in 1968. He received the Ph.D. degree from Xidian University in 2004. Now he is a professor in College of Electronic Engineering, Naval University of Engineering. His research interests include radar system and shadow inverse synthetic aperture radar signal processing. Corresponding author.Yunhe Cao was born in 1978. He received the Ph.D. degree from Xidian University in 2006. He is now an associate professor at National Key Lab of Radar Signal Processing, Xidian University. His research interests include radar array signal processing, wideband signal processing, and shadow inverse synthetic aperture radar signal processing. E-mail： cyh_idian@ 163.com