摘要
本文以南方丘陵地区为研究区域,利用ARCG IS软件平台,对不同的DEM内插算法的误差进行了对比研究,研究表明:不同的算法内查高程误差总体符合正态分布,且较大误差主要分布在地形结构线附近;研究还表明:在南方丘陵地区,与人们通常采用的TIN方法建立的DEM相比,ANUDEM插值生成的DEM更能够精确地模拟真实的地形。
Taking hiUy region in south China as research region, using the ARCGIS software, this paper analyzed the error of the different interpolations. The results show that error of different interpolation can satisfy normal distribution, and the larger error exists at the nearby of the structure line of the terrain. Furthermore, the results also show that the DEM interpolated with ANUDEM is more precise than that interpolated with TIN, which is generally accepted to generate DEM in the hilly region of south China.
出处
《测绘科学》
CSCD
北大核心
2009年第4期172-174,共3页
Science of Surveying and Mapping
关键词
DEM
误差
插值
DEM
error
interpolation
