approach terrain 中文意思是什麼
approach terrain
解釋
進場區地形-
Analysis of influence factors of greenness of bionic terrain machinery based on dematel approach
方法的地面仿生機械綠色屬性影響因素分析 -
In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )
主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。 -
Framed - quadtree approach not only guarantees the connectivity of environment structure model, but also deal with complex terrain instances and truly reflects terrain detail color
賦值外框四叉樹方法不僅保證了環境構造圖的連通性，而且可以處理地形中復雜情況並比較真實地反映地形的細節面貌。 -
The results show that selection of radiation parameterization schemes has distinct impact on the simulated results. the results simulated by the group with detailed long - wave and short - wave radiation parameterization scheme reflect plateau terrain and typhoon, cloud, subtropical high, trough / ridge more particularly and reasonably ; intensity of typhoon rainfall center is improved 1 / 3, there have been some improvements on intensity of the north heavy snow, more approach the observation
通過對2002年第16號臺風個例和2002年12月19 24日降雪個例的模擬，結果表明：選用不同的輻射參數化方案對模擬結果具有明顯的影響，較詳細的長短波輻射參數化方案組合模擬的各種輻射量和雲對地形以及臺風、副高和槽脊等天氣形勢的反映更加細致合理；降水的預報也更加接近實況。 -
After discussing the determination of terrain and intervisibility, and etc., it is shown that this approach is practical and it ' s reasoning is simple
通過對地域顯示、通視性檢測和地形檢測等幾個基本問題的分析，表明採用該方法是可行的。 -
For a long time past, all of the interpretation results from gis data have been displayed or mapped by having resort to 2d and static approach. that creates difficulty for people to tell immediately and positively what the overall results means about the terrain surface. also, the relevant information obtained could not be brought into its full play
長期以來，地理信息系統資料的分析解釋成果局限於二維靜態表達方式，它給人們直接、完整、準確地理解與感受成果所反映的地表地形地貌情況造成了困難，也限制了資料的充分利用。 -
Furthermore, by using the database with increased quantity and details need to handle the datasets which do not fit in ram ( out - of - core datasets ). meanwhile, advances in shading and image quality in general have raised the bar for image quality we would like to achieve in terrain rendering a in this thesis, we propose an efficient hardware - friendly framework - chunked lod, for large - scale terrain real - time rendering. within this framework, the approach for integrating multi - resolution representations of terrain geometry and terrain texture data is presented
變換和光照（ transform & lighting ） 、立方環境材質貼圖（ cubicenvironmentmaps ） 、頂點混合（ vertexblending ） 、紋理壓縮（ texturecompression ）和凹凸映射貼圖（ bumpmapping ） 、雙重紋理（ dualtexture ）四像素256位渲染等均可以在gpu中完成，大大減輕了cpu的壓力，對實時圖形渲染產生了深遠的影響，這其中包括實時地形渲染。 -
In the portion of research on wavelet analysis based methods for multiresolution representation, simplification and rendering of terrain models, a three step approach to the choice of appropriate wavelet transform and the best wavelets according to application requirements is propsed : the first step chooses the type of wavelet transform, the second step determines candidate wavelets by picking out satisfying wavelet characteristics, and the last step selects the best wavelets from the candidates through wavelet parameterization
在對基於小波分析的地形多解析度表示、簡化和繪制演算法的研究中，提出了一種根據應用需求分三步選擇合適的小波變換和最佳小波的方法：第一步是選擇小波變換的方式，第二步是通過明確合適的小波性質來確定候選小波的范圍，第三步是在候選范圍內通過小波參數化來遴選最合適的小波。 -
The run - of - mill approach of constructing a virtual scene was introduced and the pivotal technologies of terrain, sky, physiognomy, natural phenomena etc were discussed, and the realizations of roaming control and roaming assistant tools were given
論文在簡單介紹了構造虛擬場景的一般性步驟后，重點討論了地形、天空體、地物地貌、自然現象等關鍵技術及漫遊控制與漫遊輔助工具的實現等。 -
Smoothing approach to digital terrain for low altitude penetration
低空突防用數字地形的平滑處理 -
The 3d digital model was mainly developed and constructed according to the raster - based approach, in which terrain and buildings are represented by uniform grids with location and height associated attributes
這個立體數碼模型系統主要以格柵方式（ raster - basedapproach ）來發展和建構，用劃一的方格網來顯示地形和建築物，包括其位置及高度等特徵。 -
Simulation results display that the approach can be quite accurate and effective when applied in the terrain - matching simulation of the cruise missile. 3
模擬結果表明，該演算法的匹配精度和速度都能夠較好地滿足要求，是一種可行的匹配演算法。
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