Up-to-date digital elevation model (DEM) products are essential in many fields such as hazards mitigation and urban mana......

地球静止轨道甚高分辨率成像系统利用薄膜衍射成像可实现对地1 m分辨率。成像系统中的索杆铰接式伸展臂尺寸较长、变形精度要求高,......