Corresponding author.Huanyao Dai was born in 1982. He received M. S. degree of engineering from Aviation Uni- versity of Air Force. He is now a Ph.D. can- didate for electronic science and engineering at National University of Defense Technology. His main research interest is radar polarization information processing. E-mail:leoneast @ 163.com Yuliang Chang was born in 1980. He re- ceived M.S. degree of engineering from Na- tional University of Defense Technology. He is now a Ph.D. candidate for electronic science and engineering at National University of De- fense Technology. His main research interest is radar polarization information processing. Dahai Dai was born in 1980. He received Ph.D. degree of engineering from National University of Defense Technology. He is now a teacher at National University of Defense Tech- nology. His current research interests mainly focus on SAR radar signal processing, radar po- larization information processing. Yongzhen Li was born in 1977. He received the B.S. and Ph.D. degrees from National Uni- versity of Defense Technology in 2000 and 2004 respectively. He is currently a profes- sor and master student supervisor of the Na- tional University of Defense Technology. His research interests are radar signal processing, radar polarization signal processing. Xuesong Wang was born in 1972. He re- ceived the Ph.D. degree from National Univer- sity of Defense Technology in 1999. He is cur- rently a professor and Ph.D. student supervisor of the electronic science and engineering, Na- tional University of Defense Technology. His research interests are new type radar system, radar signal processing, radar polarization ar- ray signal processing, precision guidance and target tracking.