digital terrain model 中文意思是什麼

digital terrain model 解釋
數碼地形模型
  • digital : adj. 1. 手指的；指狀的。2. 數字的，數據的。n. 1. （鋼琴等的）琴鍵。2. 手指。
  • terrain : n. 1. 地面；地帶；地區。2. （知識的）領域范圍。3. 【軍事】地形，地勢。4. 【地質學；地理學】巖層，巖群；地質建造。
  • model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
  1. Applying the information extracted from numerous hydrographic data of field trials collected by h / hcs - 017, the first set of multi - beam swath bathymeter developed in china, a series of mosaic techniques have been carefully studied in this thesis, including digital terrain model building, statistical error analyzing, hydrographic data mosaicking as well as tides correction and projection of the earth coordinates. finally, standard digital sea - charts and three dimensional seafloor images are successfully developed that are consistent with hydrographic surveying principles

    本文利用我國第一臺h hcs ? 017型條帶測深儀的測量數據進行拼圖技術的研究，主要研究的內容有：利用分帶原理對深度數據進行潮汐修正，得到瞬時海面的深度數據；對測深數據進行誤差分析處理，去除野值；將多波束數據進行坐標變換及投影轉換后構建數字地理模型，進而根據海道測量規范繪制標準海圖。
  2. Gis ( geographic information systems ) is a computer system with collecting, checking, intergreting and analysing information which is related with interface of earth. digital terrain model display two demission geographic position and relational properts information with digital pattern. dtm is an important component of gis, and is basic of " digital earth "

    數字地面模型（ digitalterrainmodel ， dtm ）是地表二維地理空間位置和其相關的地表屬性信息的數字化表現，是地理信息系統（ geographicinformationsystem ， gis ）的重要組成部分，是數字地球的基礎。
  3. By using visual basic 5. 0 language, activex automation interface, the oop technology and developing autocad 2000, the system not only can achieve the horizontal design and the vertical design of three - legs and four - legs intersection at the tangent section and the curved section, but also can calculate earthwork based on digital terrain model

    本系統以vb5 . 0為開發工具，採用面向對象的編程方法，利用activex自動化技術，通過對autocad2000的二次開發，可以進行處于直線路段、曲線路段的三路、四路交叉口的平面設計和立面設計與繪圖，完成基於數字地面模型的工程數量計算。
  4. The technique of 3d terrain generation is the key technique in the virtual digital battlefield environment construction, where scene reality, multi - resolution and attribute query ability on terrain model are desired. in this dissertation, i discuss model data obtainment and model generation methods

    三維地形環境生成技術是虛擬數字戰場環境生成的關鍵技術，要求地形模型是一種真實、多解析度的、具備屬性查閱功能的幾何模型。
  5. The researches start from the theory of radio scatter, highly generalized the communication terrain and other conditions in some parameters. the digital simulator frame has many distinct advantages such as programmable, various fading model and channel type that can be design freely by user

    模擬器方案具有通道可編程、衰落模型可變、通道類型可變以及可設計出用戶自定義的通道類型和衰落模型等優點，擺脫了以往模擬器設計中使用經驗分佈和經驗公式的作法。
  6. Creation of triangulation digital terrain model and its application in alignment design

    三角網數字地面模型的生成及其在路線設計中的應用
  7. In this paper, based on the tide, tidal current and ocean wave numerical computing techniques and the constructive method of seabed terrain model, the fusion and visualization of multiple digital marine geographic environmental information for the nearshore marine environmental safeguard are locally realized by using the level of detail model and 3 - d rendering technique, which will provide theoretic and experiential basis for the study field in the future

    摘要以潮汐、潮流和海浪數值的計算技術和數字海底地形模型的構造方法為基礎，應用層次細節模型和三維渲染技術，完成了近岸海洋環境保障的多種數字海洋地理環境信息的融合與可視化的局部實現，為今後此領域的研究提供了理論和經驗基礎。
  8. Creating 3d terrain - realistic graphics by digital elevation model

    利用數字高程模型生成地形三維模擬圖
  9. Making full use of the correlated space information of multi - beam bathymetric data, the author put forward a method of gaussian surface approximation to build the grid net of regular digital terrain model ( dtm ) of surveyed seafloor, which is more accurate than other approximation methods

    本文充分利用了多波束數據的空間相關信息，提出了一種基於高斯地形曲面擬合的數字地理模型數據網格化方法，準確快速地得到標準等深線圖。
  10. Based on lots of advanced results of computer graphics, modem mathematics, computer science and topography, etc. this thesis discussed the theory, techniques and arithmetic of three - dimensional terrain visualization in three - dimensional gis, such as terrain modeling techniques for digital elevation model, basic theory of three - dimensional terrain visualization, dynamical three - dimensional terrain display with simplified model, and spatial query methods within three - dimensional terrain maps. among these techniques, combined with concrete requirements for visualization in flood control decision - making system, this thesis emphasized on the following aspects : 1

    本文在吸取了計算機圖形學、現代數學、計算機科學、測繪學等眾多領域大量先進理論成果的基礎上，系統的論述了三維gis中地形三維可視化的理論、技術和演算法，包括數字高程模型的地形表面建模技術、地形三維可視化的基本理論、基於模型簡化的地形三維動態顯示技術以及基於三維地形圖的空間查詢技術。
  11. A digital elevation model ( dem ) is a digital file consisting of terrain elevations for ground positions at regularly spaced horizontal intervals. dem may be used in the generation of three - dimensional graphics displaying terrain slope, aspect ( direction of slope ), and terrain profiles between selected points

    數字高程模型（ dem ）是反映高程信息的數字地面模型，它是以數字的形式按一定的結構組織在一起、表示實際地形高低起伏和地形大小特徵的空間分佈模型。
  12. The principle, antenna and some problems of terrain mapping radar are described. two origins of terrain data and digital simulated radar model have been fused

    並論述了地形測繪雷達的原理、天線形式、存在的問題，給出了產生實時地形數據的雷達數學模型。
  13. In this paper, the author discusses the theories and methods on making high quality digital elevation model based on terrain feature from digital contour line

    本文全面系統地淪述了基於地性特徵建立高質量dem的理論和方法。
  14. Digital elevation model ( dem ) is widely known as the kernel of national foundation geographical information database, as well as the basis of digital terrain analysis in gis for it contains plentiful topographical, geomorphology and correlative geographical information and acknowledge

    Dem是國家基礎地理信息數據庫的核心內容，是gis數字地形分析的數據基礎，包含著豐富的地形、地貌及相關的地學信息與知識。
  15. Basing on the foreshore digital terrain model and with the help of gis platform, the function of spatial information management and foreshore terrain analysis is integrated in the system, and coupling query and sql query are realized in it, too. the system has been used for several layout projects, and the effect has benn proved good

    以灘塗數字地形模型為基礎，藉助于地理信息系統平臺，系統集空間信息管理和灘塗地形分析功能於一體，實現了多種數據的耦合查詢、條件查詢等，並且參與了相關項目的規劃工作，實踐證明效果良好。
  16. The two - dimensional statistical model of terrain is described by planar non - stationary random process and function w - m in topography. on the basis of the statistical model of terrain, the simulated digital maps are produced by computer

    對模擬中用到的二維隨機過程和分形學中的w - m函數產生地形數學模型的方法做了討論，採用二維隨機過程的方法產生了數字模擬地圖。
  17. This dissertation focused on the research and experiment work in the following aspects : 1 ) the basic problems of digital 3d terrain modeling and visualization ; 2 ) the reconstruction of terrain surface ; 3 ) the real tune terrain simplifying and multi - resolution terrain model presenting. a view dependent dynamic multi - resolution terrain model is presented

    論文從三維數字地形建模與可視化的基本問題，數字地形三維模型的計算機重構，復雜地形模型的實時動態簡化與多解析度表示等方面開展了研究與試驗工作。
  18. Digital terrain model

    數值地形模型
  19. On the basis of geographic information system, the data files of foreshore terrain in shanghai about twenty years are exported with the support of digital elevation model. basing on these files, the foreshore digital terrain model is established

    在地理信息系統的平臺上，本文藉助數字高程模型，導出上海市近二十年灘塗地形的數據文件，並以此為基礎建立了灘塗數字地形模型。
  20. The paper, which is based on the project of national science fund - behavior - characteristic modeling for distributed & interactive 3d scenery and the project the development of distributed and interactive 3d simulation platform, chiefly research the modeling of 3d scenery and the method to real - timely rending the scenery. the paper mainly involved four parts : the generation of digital terrain model, the rebuilding of 3d terrain, the method to real - time rendering 3d terrain, the technology of the photo - realistic terrain generation

    本文結合國家自然科學基金的項目《分佈交互三維行為?特徵建模方法的研究》和《分佈交互三維模擬平臺的開發》 ，主要研究了三維場景建模及其實時渲染方法，內容涉及到以下幾個方面：數字地形模型的生成、三維地形的改造、三維地形的實時渲染方法、真實感地形的生成技術。
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