1. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
2. College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China
3. Weihai Institute for Bionics, Jilin University, Weihai 264402, China
4. School of Future Technology, South China University of Technology, Guangzhou 511436, China
5. Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan 20133, Italy