基于三维地形可视化的GPS控制网布设

摘要

This essay mainly introduces the major procedure of realizing 3 D terrain visualization with ERDAS IMAG- INE, and taking some region in Xinjiang province as experimental area, establishing the GPS control network and selec- ting control points on the RS image. To determine the final positions of control points, the GPS control network need to be investigated in the field. Because the site selecting work becomes more rational, intuitive and convenient, some economical expenses can be saved. There are some advising effects for the design of GPS control network in the field.%主要论述了利用ERDAS遥感图像处理软件实现三维地形可视化的主要过程，并以新疆某地区为试验区域，在遥感影像图上进行GPS控制点的选取及控制网的布设。布设好的控制网需要经过实地勘察，最终确定控制点的位置。由于图上选点更加直观更加方便，提高了选点工作的条理性，节省了一定的经济开支，对实地GPS控制网布设具有一定指导作用。