1. School of Automation, Nanjing University of Information Science and Technology, 219 Ningliu Road, Nanjing 210044, China
2. Jiangsu Collaborative Innovation Centre on Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, 219 Ningliu Road, Nanjing 210044, China
3. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, 29 Xueyuan Road, Beijing 10083, China