作者机构:[1]Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China
相关基金:Project supported by the National Natural Science Foundation of China (Grant Nos. 60573172 and 60973152), the Superior University Doctor Subject Special Scientific Research Foundation of China (Grant No. 20070141014), and the Natural Science Foundation of Liaoning Province, China (Grant No. 20082165).