中文摘要：

Corresponding author.Hong Li was born in 1972. He received his Ph.D. degree in School of Electronic Engineer- ing from Xidian University in 2009. He is cur- rently working as an associate professor in Xi- dian University. His research interests include evolutionary computation, optimization theory, algorithms and applications. E-mail： lihong @ mail.xidian.edu.cn Yongchang Jiao was born in 1964. He received his Ph.D. degree in School of Electronic Engi- neering from Xidian University in 1990. Cur- rently, he is a professor with the Institute of An- tennas and Electromagnetic Scattering, Xidian University. His research interests include opti- mization algorithms and applications, evolution- ary computation, as well as analysis and synthe- sis of antennas. E-mail： ychjiao @ xidian.edu.cn Li Zhang was bom in 1976. She is currently pursuing the Ph.D. degree in Xidian University. Her research interests include neural network, signal processing. E-mail： lzhang @ xidian.edu.cn