1. Ph.D. Student, School of Automation, Northwestern Polytechnical Univ., Xi’an 710072, PR China. ORCID: .
2. Professor, School of Automation, Northwestern Polytechnical Univ., Xi’an 710072, PR China. ORCID: .
3. Ph.D. Student, School of Automation, Northwestern Polytechnical Univ., Xi’an 710072, PR China.
4. Associate Professor, School of Automation, Northwestern Polytechnical Univ., Xi’an 710072, PR China (corresponding author).