1. State Key Laboratory of Acoustics , , Beijing 100190 , People's Republic of China
2. Institute of Acoustics, Chinese Academy of Sciences , , Beijing 100190 , People's Republic of China
3. School of Physics Sciences, University of the Chinese Academy of Sciences , Beijing 100149 , People's Republic of China
4. Beijing Engineering Research Center for Drilling and Exploration, Chinese Academy of Sciences , Beijing 100190 , People's Republic of China