作者机构:[1]Sichuan Province Key Lab of Signal &: Information Processing, Southwest Jiaotong University, Chengdu 610031, China
相关基金:Project supported by the National Natural Science Foundation of China (Grant No.60971104), the Basic Research Foundation of Sichuan Province, China (Grant No.2006J013-011), and the Outstanding Young Researchers Foundation of Sichuan Province, China (Gra