摘要
介绍了送电工程勘测设计中数字高程模型(DEM)获取的3种主要方法:收集资料获取、矢量化生成、高分辨率卫星遥感影像立体像对处理,及采用上述方式获取DEM的过程中应注意的问题。由地理信息中心收集资料获取相应的DEM时,应注意数字测量系统软件及卫星遥感影像处理软件的差异;矢量化生成DEM及高分辨率立体卫星遥感影像获取DEM时,应注意外业控制点布设原则及数量,并结合具体工程介绍了其应用情况。
This paper presents three main methods in DEM acquisition for the power transmission engineering survey and design, namely data collection, vector generation and stereo matching of high-resolution satellite remote sensing imagery, giving the necessary precautions in the application of the methods above. In extracting the DEM via data collection from the geographic information center, attention should be paid to the differences between the digital measuring software and the processing software of satellite remote sensing and imaging, while in the application of the other two methods, special attention should be paid to the arrangement and the number of the ground control points. In addition, some specific applications in the engineering practice are also given.
出处
《电力技术经济》
2009年第4期39-42,共4页
Electric Power Technologic Economics
关键词
送电工程
勘测设计
数字高程模型
卫星遥感影像立体像对
power transmission engineering
survey and design
DEM
stereo matching of satellite remote sensing imagery
