中文摘要：

Corresponding author.Yanhua Peng was born in 1984. She is a master in the School of Electronic Engineering, University of Electronic Science and Technology of China. Her research interests are signal detection, parameter estimation and so on. E-mail：pengyh1024@ 163.com Bin Tang was born in 1964. He is a professor in the School of Electronic Engineering, University of Electronic Science and Technology of China. His research interests are electronic scout and countermeasure, digital signal processing, and wireless communications. E-mail： bint@uestc.edu.cn Ming Lv is an associate professor in the School of Electronic Engineering, University of Electronic Science and Technology of China. His research in-terests are communication and signal processing. E-mail： lvming@uestc.edu.cn