1. University of Electronic Science and Technology of China,School of Resources and Environment,Chengdu,PRC,611731
2. University of Electronic Science and Technology of China,Glasgow College,Chengdu,PRC,611731
3. Guilin University of Technology,Guangxi Key Laboratory for Spatial Information and Geomatics,Guilin, Guangxi,PRC,541004
4. Joint Laboratory of Power Remote Sensing Technology (Electric Power Research Institute, Yunnan Power Grid Company Ltd),Kunming,PRC,650217
5. China Railway Eryuan Engineering Group Co., LTD,Chengdu,PRC,610031