1. Master of Engineering Student, College of Electronics and Information Engineering, Sichuan Univ., Chengdu 610000, China.
2. Professor, College of Electronics and Information Engineering, Sichuan Univ., Chengdu 610000, China (corresponding author).
3. Ph.D. Student, College of Water Resources and Hydropower Engineering, Sichuan Univ., Chengdu 610000, China.