Xiong GuanglengDepartment of Automation, Tsinghua University, Beijing 100084, China

Hou YibinXian Jiaotong University, Xian, 710049, China

Zhou ShipengBeijing Research Institute of Engineering Technology, Beijing 100012, China

Feng ShanDept. of Aut. Control Eng. Huazhong Univ. of Sci. and Tech. Wuhan, 430074, China

Wang Jing & Yang DeliInst. of Systems Engineering, Dalian University of Technology. Dalian 116023, China

Gu Dingliang and Pang ChengInstitute of Space Medico-Engineering, Beijing 100094, China

Tang Gangdou and Wang KeBeijing Institute of Data Processing Technology, P.O. Box 3927, Beijing 100854, China

Jinxion Chen & Guotai YinBeijing Institute of Radio Measurement, P.O.Box 3923, Beijing 100854, China

Jinxiong Xie, student member, IEEE, and Weigan Lin, senior member, IEEEUniversity of Electronic Science and Technology of China, Chengdu 610054, China

Qiangfu Zhao, Zhong Wang and Youan KeDept. of Electronic Eng., Beijing Institute of Technology, P.O.Box 327, Beijing 100081, China

Lu Caicheng & Wang BaofaDept. of Electronic Eng., Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Song Liuping and Sun ZhongkangDept. of Electronic Eng., National Univ. of Defense Technology, Changsha 410073, China

Li Jiliang and Xie ZhanaoBeijing Institute of Radio Measurement, P.O.Box 3923, Beijing 100854, China