1. Key Laboratory of Spectral Imaging Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi’an, China
2. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
3. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, and the Research Center for UAV Applications and Regulation, Chinese Academy of Sciences, Beijing, China