The DEM format encodes elevation data to create highly detailed terrains.
The result indicates that DEM has wide prospects in numerical simulation of the dense solid-gas flow.
The dynamic process of deformation and failure of the Moziwan landslide is simulated with Discrete Element Method (DEM) in this paper.
Because (interferometric) Cartwheel and Pendulum formation is put forward based on side-glance geometry, simulation results show that the DEM performance of them are not optimal.
主要從實際應用的角度出發，介紹了測繪技術在管線工程項目中的應用，以及製作DEM和DOM的方法。
指出傳統坡度研究方法已與GIS的發展，DEM的廣泛應用不相適應，也不能滿足水文和土壤侵蝕定量模擬研究的需要。
Algorithm for Building Grid DEM Based on TIN DEM Data
According to current DEM resolution,depressions and flat areas in a DEM are mainly from real landform features and spurious features.
該方案根據現實可得DEM數據的精度 ,指出DEM中“數字負地形”來自真實的地形和偽地形 ;
Phase unwrapping is one of the key steps for the processing of InSAR data. The quality of the unwrapping results affects the final DEM directly.
每個結點表示一個DEM數據分塊，根據如此剖分，由這棵四叉樹結構就得到全球範圍不同分辨率的DEM數據存儲結構。
These methods were not matched to development of GIS and DEM applications, and do not meet the requirements of modeling in watershed hydrology and regional soil erosion as well.
Analysis of Slope and Aspect Based on Regular Grid DEM
The error source and feasibility of INSAR DEM construction on inland ice sheet is well analyzed.
將DEM生成表述為像素標號問題，匹配影像直接生成DEM，不但進行整體優化而且去除內*對DEM質量的影響。
而針對少部分過濾有誤的地方仍須以人工進行檢核編修，以確保DEM之成果品質。
在中歐*合作第五框架中“ANFAS”項目的資助下，本文開展了基於星載合成孔徑雷達干涉測量技術的DEM生成的研究。
The Method for Extraction Topographic Feature Line Based on Grid DEM;
Because DEM contains plentiful data shapes, the dissertation classified the data shape and discussed in details the reason and correlative relationship with real geomorphologic features of it.
在FLY模塊下，分別裝入糾正好的TM影像和DEM，即可生成遙感信息三維飛行數據模型。
Each node represents one DEM data block. According this separation, by quad-tree data structure can get global different resolution DEM data storage architecture.
This article proceeds from actual use, introduces the application of surveying technique in the pipeline engineering and the method of DEM and DOM manufacture.
【中英文摘要】介紹了三維城市模型的要素和數據內容,並從DEM數據獲取、面紋理數據獲取、築物的數據獲取和其他數據獲取等方面探討了獲取地理數據的方法。
Study on method for extraction of river network in Dujiangyan area within Minjiang River Basin based on GIS and DEM
Research on DEM error of double orientation interpolation on grid
Based on 3d laser scanner system, the paper takes the Qiaogou small basin locating in hilly and gully region, Suide County as test region, sets up its high-precision DEM.
本文研究了利用航天遙感影像自動提取數字高程模型（DEM）的方法技術，建立了一整套利用SPOT影像提取DEM的方案。
論文針對柬埔寨地質資料嚴重缺乏及洞裏薩湖地區地貌特點，採用TM、ALOS遙感影像數據結合DEM數據開展地貌及微地貌製圖研究，實現數字地貌製圖。
According to its physical mechanics properties, the statics characteristic of lunar soil is studied using DEM software PFC3D.
A Proximity Query Algorithm for Three-Dimensional DEM Based on Dynamic Octree;
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