Guoqin Zhang, Dacheng Li, Taiyuan University of Technology, China; Hua Li, State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, China; Fan Mo, Institute of Remote Sensing Satellite,China Academy of Space Technology, China; Yi Yang, Hui Jia, Jie Yu, Yue Lyu, Taiyuan University of Technology, China