1. Department of Mechanical Engineering, Stevens Institute of Technology, 1 Castle Point Terrace, Hoboken, NJ 07030, USA
2. Department of Electrical and Computer Engineering, University of Florida, P.O. Box 116200, Gainesville, FL 32611-6200, USA
3. National Key Laboratory of Aerospace Flight Dynamics, Northwestern Polytechnical University, 127 Youyu West Rd, Xi’an, Shaanxi Province 710072, China