Corresponding author.Hongyuan Gao was born in 1977. He received the Ph.D. degree in Harbin Engineering University in 2011. He is currently a lecturer in the College of Information and Communication Engineering at Harbin Engineering University. His current research interests include intelligence computing, signal processing of radar, and communication theory. E-mail: gaohongyuan @ hrbeu.edu.cn Jinlong Cao was born in 1987. He is a student of communication and information systems. He is currently studying in the College of Information and Communication Engineering at Beijing University of Posts and Telecommunications, China. His current research interests include swarm computing, cognitive radio theory and signal processing. E-mall: lansebolang2008@ 183.com