1. Department of Information and Communication EngineeringHarbin Institute of TechnologyHarbinPeople's Republic of China
2. Department of Information and Communication EngineeringHarbin Institute of TechnologyWeihaiPeople's Republic of China
3. School of Information Science and EngineeringOcean University of ChinaQingdaoPeople's Republic of China
4. CSIC PRIDE (NanJing) Atmospheric and Oceanic Information System Co. LtdNanjingPeople's Republic of China