1. College of Oceanography and Space Informatics, China University of Petroleum (East China), Qingdao, China
2. School of Information and Electronics, Beijing Institute of Technology, Beijing, China
3. Laboratory of Marine Physics and Remote Sensing, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
4. College of Control Science and Engineering, China University of Petroleum (East China), Qingdao, China