中文摘要：

Corresponding author.Jinping Sun was born in 1975. Now he is an as- sociate professor in School of Electronic and Information Engineering of Beihang University. His research interests include high resolution and advanced mode radar signal processing, image understanding, and pattern recognition. E-mail： sunjinping @ buaa.edu.cn Guohua Wang was born in 1979. He is currently a Ph.D. candidate in School of Electrical and Electronic Engineering, Nanyang Technological Uni- versity, Singapore. His current research interests are in the areas of waveform design and diversity and MIMO radar signal processing. E-mail：guowang @ ntu.edu.sg Shiyi Mao was born in 1935. Now he is a professor and Ph.D. supervisor of Beihang University. His research interests include high-resolution imaging, image understanding, multi-target track- ing and data fusion. E-mail：maoshiyi @ buaa.edu.cn