作者机构:[1]College of Communication Engineering, Jilin University, Changchtm 130012, China, [2]College of Electronic Science and Engineering, Jilin University, Changchtm 130012, China, [3]The Northern Institute of Electronic Equipment of China, Beijing 100191, China
相关基金:This work was supported by Changchun Science and Technology Support Program (llKZ36), and the National Natural Science Foundation of China (60372061).