terrain theory 中文意思是什麼
terrain theory
解釋
地體說-
The research emphases of the paper include the establishment of terrain model and the realization of detail of surface. during the establishment of terrain model, the theory of fractal and the characteristics of ivs, fractal brown motion ( fbm ) are discussed and compared, and prove the model is adapt to the feature of the physiognomy
地形模型的建立和地表細節的表現是本文研究工作的重點，在建立地形模型的過程中，分析了分形理論和分形法中的隨機插值、布朗運動（ fbm ）的原理並進行比較，論證了其數學模型與真實地貌特徵基本吻合，並運用隨機插值法（ insert - valuestochastically ， ivs ）實現了地形的分形模型。 -
Experiment results show : ? he theory and method of information content could play an important role in the case study on the accuracy and application of dem. ( 2 ) in the loess plateau area, there are much difference between 5m resolution dems of 1 : 10000 map scale and 25m resolution dems of 1 : 50000 map scale while gathering terrain characteristic information, and yet the spatial structure of dem error have discipline and measurability on statistics. ( ? the results could offer fundamentals and methods to people on their work to research the terrain information content of dems with different scale level
研究結果顯示： 1 、地形信息容量的理論與方法對于dem精度與應用適宜性的研究具有重要的作用； 2 、在黃土丘陵溝壑區，同1 ： 1萬比例尺5米解析度的dem相比， 1 ： 5萬比例尺25米解析度dem在提取地形特徵方面具有較大的差異，但誤差的量值與空間分佈具有統計上的規律性與可估算性； 3 、以上研究結果可望為其它各級比例尺dem地形信息容量的研究提供新的理論基礎與技術方法，也可為有關規范、標準的制定提供依據。 -
Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail
針對一維單脈沖雷達體制，分析了地形目標回波特性；建立了地形跟隨雷達空地測距的幾何關系；利用雷達收發信號，導出了地形跟隨雷達和差接收通道的回波信號表達式，進行了波形模擬，得到了地形跟隨雷達的地面散射產生回波在時域中的特性；根據和差回波特性，闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用，並給出了真實雷達對外輻射試驗的結果，驗證了文中的模擬。 -
It is directed by the 1atest theory of terrain stickin plate tectonic, and based o n petrographical series and stratum layers. from the aspects of structural analysis, stratigraphy, petrology, sedimentology, structure geology, remote sensing geology, geophysics as well as tectonics, the author put the ordos basin into a bigger and deeper studying field while using the combination of sedimentation and structure analyses, the data of outcrops around the basin and the deep drilling coring data in the middle of this basin, geochemistry analysis, seismic methods and non - seismic methods, etc. this paper discussed the relationship between the crystalline basement and the suprastructure in and surrounding the ordos basin, and also the influences of deep geology on the basin platform cover, and some new point of view and better understanding have been brought forward on the basement growth of ordos basin and it ' s platform cover
論文以板塊構造研究的最新地體拼貼理論為指導，以巖系、地層為基礎，將沉積與構造分析相結合，並以地層學、巖石學、沉積學、構造地質學、遙感地質學、地球物理學、大地構造學等多學科入手，在充分整理現有資料及前人研究的成果基礎上，利用盆地周緣野外露頭以及盆地中部分鉆井深部取芯資料、地球化學分析資料、地震、非地震等資料將鄂爾多斯盆地置於一個更大的尺度，更深的范疇，討論了鄂爾多斯盆地及其周緣地區結晶基底與淺層構造之間的關系，探討了深部地質對盆地蓋層的影響，以不與前人雷同的視角對鄂爾多斯盆地基底發育及其蓋層中存在的問題提出了新的觀點和認識。 -
As for the 3d modeling, the respondent modeling method is anglicized according to the characteristics of various sceneries. the simplicity of drawing method is proposed by combine the method of displaying list, terrain segmentation and vertex removing, which fulfilled the real - time display of a great scale terrain. as to the second problem, the quantitative relationship of view body and visual angle is deducted based on the theory of mathematics, which resolves the problem of aircraft pose display with better visual effect in simulation. these display the author ' s creative works
在前者中，針對于各種景物的特點提煉出了相應的建模方法，並提出了將顯示列表、地形分割和頂點刪除法相結合的地形簡化繪制方法，實現了較大規模地形的實時顯示；在後者中，作者從數學角度推導出了視景體和飛行姿態角的定量對應關系，解決了飛行姿態顯示的問題，通過模擬，獲得了較好的視覺效果。 -
These basic theories are helpful to construct model. some parameters of soil used for experiments are measured by shear experiments. secondly, mechanical models of the wheel - soil interaction when rolling and steering are constructed respectively based on the theory of terrain - vehicle and passive earth pressure
基於地面力學中的bekker承壓模型和janosi剪切模型，建立了一種月球車車輪在松軟地面上前進時的力學模型，根據被動土壓力理論，建立了該車輪在轉向時的力學模型，給出了所建方程及模型的數值解法。 -
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。 -
The reconstructing of the tiny terrain based on fractal theory
基於紋理映射技術的地形可視化 -
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。 -
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 visualization, such as the data structure based on three - dimensional space, terrain and object modeling techniques, basic theory of three - dimensional terrain visualization, dynamical three - dimensional terrain display, matching and display technology between terrain and objects and spatial query within three - dimensional terrain maps
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，系統的論述了三維可視化中的三維空間中數據結構、地形地物三維可視化的理論、技術和演算法，包括三維空間數據結構的設計、地形三維可視化的基本理論、地形三維動態顯示技術、地物與地形的匹配與顯示技術以及基於三維地形圖的空間查詢技術。 -
Pedodiversity is a new theory and method based on biodiversity conception in ecology but applied to non - renewable non - biological resource that was developed since the 1990s. this paper applied pedodiversity analytical theory and method to analyze the spatial variability of the soils developed on different parent materials and terrains, the data source is 1 : 1, 000, 000 scale soil and terrain digital database ( soter ) of shandong province, china
土壤多樣性理論是20世紀90年代發展起來的、基於生態學中生物多樣性概念但應用於不可再生性非生物資源的一種新的理論與方法.本論文應用土壤多樣性分析理論與方法，以山東省1 ： 100萬土壤-地形體數字化數據庫（ soter ）為數據源，對不同母巖、不同地形上發育的土壤空間可變性進行了研究。 -
The fractal model of terrain is established based on the theory of ivs. at the same time, a algorithm based on ivs and texture mapping is put forward which help to create the dynamic visible result. the results make sure that the algorithm can meet the construction of virtual scences, so do its validity and practicability
在基於隨機插值和紋理映射相結合的演算法基礎上，以vc + +為平臺，結合opengl三維圖形庫進行編程，以二者的有機結合對分形地形的模擬生成進行了可視化的動態實驗研究，結果證實了該方法的有效性和實用性，滿足了虛擬場景的需要。 -
Firstly, the theory and characteristic of comgis is studied. secondly, the key techniques, such as map digitalization, autocad dxf file conversion, computational gridding, methods for interpolation, the 3d terrain visualization, and the results correction, are introduced. and lastly, a framework on numerical modeling is implemented and applied in a practical research work on coastal engineering
本文首先介紹了組件式地理信息系統的原理和特點；接著重點討論了前處理過程中各種關鍵的技術，包括地圖數字化技術、數字地圖數據讀取方法、計算網格生成技術、插值方法的選取、地形可視化技術以及計算結果修正方法等；最後本文提出了前處理系統的設計框架，並結合一個海岸動力數值模擬的研究實例，討論了前處理系統的具體應用。 -
I consider the distance factor and combine the shannon entropy theory to educe the distance entropy function, then use it as the insert calculation function. the distance entropy function make a good terrain surface fitting effect and extend the application field of entropy theory as well as the calculation method of curved surface fitting
通過考慮距離因素，並結合香農熵理論，得出基於距離熵的曲面插值函數，將其用於地表曲面擬合，取得良好的擬合效果，拓寬了熵的應用與研究范圍，同時也拓展了用於曲面擬合的數值計算方法。
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