正地形

利用数字纠正制作正射影象地形图的试验

An Experiment for making Orthophoto maps by the Method of Rectification

试验结果表明，数字纠正方法能够产生山区优质的大比例尺正射影象地形图。

Experimental results have shown that digital rectification can be used for producing high quality large scall orthophoto maps in mountainous area .

阐述了利用DEM和数字正射影像进行地形环境虚拟现实研究的原理、方法和实践。

This article is on the theory , method and practice of terrain environment virtual reality based on DEM and digital orthophoto .

因此事实上，如果你们在谈论爬山，那正是一幅地形图的内容。

So , in fact , if you have been talking about hiking on mountains , well , that 's exactly what a topographical map is about .

在自主着陆、自主导航等应用领域，需要掌握飞行器正前方区域的地形地貌及目标情况，解决长期困扰雷达正前视高分辨成像的技术难题。

To get knowledge of topography and targets in front of aircraft , and solve the technical challenge which troubles forward-looking high-resolution imaging for a long time period , is an urgent issue in the field of autonomous landing and autonomous navigation .