1. School of Electrical and Computer Engineering, Georgia Institute of Technology, North Avenue, Atlanta, Georgia 30332, USA
2. Korea Research Institute of Ships and Ocean Engineering, 32 1312beon-gil Yuseong-daero, Yuseong-gu, Daejeon, 34103, Korea
3. George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, North Avenue, Atlanta, Georgia 30332, USA