1. Key Laboratory of Hydraulic and Waterway Engineering of Ministry of Education, Chongqing Jiaotong University, Chongqing, P. R. China
2. Engineering Research Center of Diagnosis Technology and Instruments of Hydro-Construction, Chongqing Jiaotong University, Nan’an, Chongqing, P. R. China
3. Faculty of Computing, Engineering and Science,School of Engineering, University of South Wales, Treforest, UK