1. Ocean College, Institute of Marine Electronics and Intelligent Systems, the Engineering Research Center of Oceanic Sensing Technology and Equipment, Ministry of Education, and the Key Laboratory of Ocean Observation-Imaging Testbed of Zhejiang Province, Zhejiang University, Zhoushan, China
2. International College of Semiconductor Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
3. Institute of VLSI Design and Research, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China
4. Donghai Laboratory, Zhoushan, China
5. Department of Electrical and Computer Engineering, University of California at Davis, Davis, CA, USA