作业帮英语翻译数字高程模型(Digital Elevation Model),简称DEM.它是用一组有序数值阵列形式表示地面高程的一种实体地面模型,是数字地形模型(Digital Terrain Model,简称DTM)的一个分支.一般认为,DTM是描述包
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英语翻译数字高程模型(Digital Elevation Model),简称DEM.它是用一组有序数值阵列形式表示地面高程的一种实体地面模型,是数字地形模型(Digital Terrain Model,简称DTM)的一个分支.一般认为,DTM是描述包
英语翻译
数字高程模型(Digital Elevation Model),简称DEM.它是用一组有序数值阵列形式表示地面高程的一种实体地面模型,是数字地形模型(Digital Terrain Model,简称DTM)的一个分支.一般认为,DTM是描述包括高程在内的各种地貌因子,如坡度、坡向、坡度变化率等因子在内的线性和非线性组合的空间分布,其中DEM是零阶单纯的单项数字地貌模型,其他如坡度、坡向及坡度变化率等地貌特性可在DEM的基础上派生.合成孔径雷达干涉测量技术(INSAR)于20世纪60年了七未开始发展.其基本原理就是利用具有一定视角差的两部天线(或一部天线两次经过)来获取同一地面区域的两幅具有相干性的SAR单视复图像,并根据其干涉相位数据来提取地表的DEM信息.
英语翻译数字高程模型(Digital Elevation Model),简称DEM.它是用一组有序数值阵列形式表示地面高程的一种实体地面模型,是数字地形模型(Digital Terrain Model,简称DTM)的一个分支.一般认为,DTM是描述包
The digital elevation model (Digital Elevation Model),is called DEM.It is with a group of order value array form expressed that ground elevation's one kind of entity terrain pattern,is the digital terrain model (Digital Terrain Model,is called DTM) a branch.Generally,DTM is the description including the elevation each kind of landform factor,like slope,slope to,factor and so on slope rate of change linearity and misalignment combination spatial distribution,DEM is the zeroth order pure single item digit landform model,other like slope,the slope to and landform characteristics and so on slope rate of change may derive in the DEM foundation.Synthetic aperture radar interference measuring technique (INSAR) seven had not started in the 20th century 60 years to develop.As soon as its basic principle is the use has fixes one's eyes on the angular difference two antennas (or an antenna two process) gains identical ground region two to have the coherence SAR haplopia duplicate image,and withdraws the surface according to its interference phase data the DEM information.