利用LIDAR与GPS-RTK技术生成水域DEM的方法研究

The research of The method of LIDAR and GPS-RTK technology to generate DEM water

航飞LIDAR系统可以高效、快速地获取高分辨率的地形数据,并据此快速获取区域的数字高程模型。但是在激光束无法穿透的水域,LIDAR系统的DEM数据明显失真,对于这种失真,我们可以通过GPS-RTK技术水下测量来弥补其不足。

Aircraft flying LIDAR system can be efficiently and quickly obtain high-resolution terrain data, and accordingly quick access to regional digital elevation model.However, the laser beam can not penetrate the wa- ter,LIDAR DEM data systemobviously distorted,for this distortion,we can measure underwater GPS-RTK techniqueto compensate for its shortcomings.