Digital Terrain Model is the basic and core module of the railway route CAD system.
数字地面模型是铁路线路CAD的基础核心模块。
Digital terrain model (DTM) is an important component of a resource information system.
模型(dtm)是资源信息系统中的重要组成部分。
The analysis of terrain factors is the foundation of the digital terrain analysis based on DEM.
基于DEM的数字地形分析主要是以对地形因子的分析为基础。
At last, we discuss terrain visualization due to the practicability of digital terrain analysis.
鉴于数字地形分析的实用性，本文最后对它的可视化进行了讨论。
The methods to obtain the Digital Terrain Model (DTM) from contour map by scan digitizing were studied.
本文还研究了通过扫描数字化等高线图建立数字地形模型的方法。
This is an attempt to give a method of railway profile automation design by means of digital terrain model.
本文给出了一种用数字地面模型进行铁路纵断面自动设计的方法。
The paper mainly researches how to construct digital terrain in big type mechanical dynamics software ADAMS.
主要研究如何在大型动力学软件ADAMS中实现数字地形的构建。
Image matching is the key stage for digital Terrain Model (DTM) automatical aquisition using with digital images.
利用数字影像自动提取数字地形模型(dtm)的关键是影像匹配。
This method has shown a good furture for automatic relative orientation and generation of Digital Terrain Models.
为实现立体像对的自动相对定向和数字地形模型自动生成提供了一种切实可行的方法。
Grid digital terrain is produced with getting reference point by subarea and weighted averaging method, and is visualized.
进一步采取分区域选点法，用加权平均法生成了网格数字地形，实现了地形的可视化。
A method is presented to implement real-time 3d road animation coupled with road design data and digital terrain model (DTM).
研究了一种用数字地面模型和公路设计数据实现实时三维动画的方法。
The soil erosion potential possibility can be studied using the soil background map and digital terrain map supported by GIS;
在GIS支持下，利用土壤背景和数字地形模型可实现水土流失潜在可能性分析。
The terrain analytic's basic theory for many fields and implement measure can be provided by digital terrain analysis based on DEM.
研究基于DEM的数字地形分析可以为各个领域提供地形分析的基础理论及实现手段。
We mainly analyse digital terrain, which includes the computation of basic terrain factor and the abstraction of terrain characteristics.
数字地形分析的内容主要包括基本地形因子的计算和地形特征的提取。
In this paper the methods and experiments for applying the digital terrain model(DTM) to improve the classification accuracy are introduced.
本文着重介绍在遥感影象分类中应用数字地面模型（DTM）改正地物反射光谱中地形影响的方法和试验。
To counter the splice problem of digital terrain model (DTM) the paper puts forward the algorithm of cutting out of splice line to triangle network.
该文针对数字地面模型(dtm)的拼接问题提出了基于拼接线对三角网进行裁减的算法，并对其基本原理及主要过程进行了详细介绍。
The algorithm can be directly applied to data mining, digital grid partitioning and estimation, data partitioning, digital terrain surface simplification, etc.
实现的算法可以直接应用于数据挖掘、数字网格划分与评估、数据分割、数值地形曲面的简化等问题。
All-digital terrain following (TF ) simulation system and hardware-in-loop real-time terrain follow simulation system are designed to verify the TF algorithms.
本文开发了全数字地形跟随仿真系统与半物理地形跟随仿真系统两个系统以验证所设计的地形跟随算法。
As the data base of the GIS digital terrain analysis, digital Elevation Model (DEM) contains rich of terrain, topography and related geo-information and knowledge.
数字地形模型(DEM)包含着丰富的地形、地貌及相关的地学信息与知识，是GIS数字地形分析的数据基础。
Generation of triangular meshes for digital terrain model is studied, the triangulation algorithm of discrete points and edges and its data structure are presented.
对构筑三角形网格建立数字地形模型进行了研究，给出了基于散乱点和边建立三角形网格地形模型的生成算法和数据结构。
High resolution digital terrain model derived up from LiDAR point clouds can provide more details of microrelief information for tidal wetland environment researches.
应用激光雷达数据生产高精度的数字地面模型，可为滨岸环境的研究提供精细的微地貌数据。
Analyzing the storage format of DMA DTED and USGS DEM and then presenting a new digital terrain elevation data storage format. The storing and reading algorithm are also realized.
分析了DMA的DTED和USGS的DEM高程数据存储格式，比较了其异同，提出了一种高效的数字地图高程数据的存储格式并实现了存取算法。
In this dissertation, the two sides of basic terrain factor and complex terrain factor are investigated and implemented based on the basic concept of digital terrain analysis introduced.
本文在介绍数字地形分析基本概念的基础上，从基本地形因子和复杂地形因子两个方面进行了研究与实现。
Digital Terrain Model is a general designation of space topographical data set, and it is the digital description with the figure of space position and topographical attributive character.
数字地形模型是空间地形数据集合的统称，是具有空间位置特征和地形属性特征的数字描述。
In view of the situation that there are errors in navigation data and digital terrain data, the robustness of reference path is ensured according to choice the cell width of search space properly.
针对导航系统精度和数字地图存在误差的情况，通过适当划分搜索空间网格保证了航迹的鲁棒性。
This paper describes the basic concepts of digital terrain model (DTM), how to use DTM in practice in the mining geological exploration, and how to use CASS surveying and mapping system to build DTM.
简要阐述了数字地面模型(dtm)的基本概念，并结合矿山地质勘查，提出实际情况应用，利用CASS成图系统建立模型。
Soldiers are questioning how much they’ll use digital chem lights in Afghanistan’s mountainous, largely-rural terrain.
士兵们问在阿富汗的广大多山的农村地区中能用多少数字化学灯。
It will not be easy to jump from the familiar, lucrative terrain of bundled pay-TV into an a la carte world of apps and digital distribution.
从熟悉的、利润丰厚的打包收费电视领域跨越到苹果和数码发送的点播世界并非轻而易举。
Digital Elevation model (DEM) is a common model of three dimension terrain, and digital analysis is mainly based on DEM.
在三维地形有关的数字分析中，地表面积是经常用到的数据。
The principle of loading of digital map in the terrain auxiliary navigation is studied. It is concluded that FDN plays an auxiliary role in the process of loading of digital map.
研究了地形辅助导航中数字地图的加载原理及飞行力学导航法在数字地图加载过程中的辅助作用。
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