水下地形 的英文怎麼說
中文拼音 [shuǐxiàdexíng]
水下地形
英文
bottom profile-
Using the hulscher model of the formation of sand waves and sandbanks, under the ancient bathymetry, or under the modern bathymetry, the stokes number of the tidal flow and resistance parameter in the radial sandbanks satisfy the conditions for the formation of sandbanks. the research demonstrates that the dynamic flow conditions result in the development of tidal current sandbank. the radial sandbanks and it ' s asymmetrical distributions will still maintain in the future
應用hulscher沙波及沙脊增長模式，通過對該海域斯托克斯數及底部阻力參數的計算首次發現，南黃海輻射沙脊群海域在概化古地形和現代輻射狀沙脊群水下地形情況下，其斯托克斯數及底部阻力參數均滿足形成潮流沙脊的條件。Application of gps - rtk integrated with digital echo sounder to underwater topography survey
與數字測深集成技術在水下地形測量中的應用The underwater topographic survey in lake dianchi employed the dual - frequency gps with rtk technology, which type is american trimble 4700, for horizontal positioning f and the type of the fathometer is wuxi haiying sdh - 13d ; the navigation software : the south 5. 0
對滇池水下地形測量外業數據的採集，平面定位採用美國trimble4700雙頻gps接收機；水深測量採用的測深儀為無錫海鷹sdh ? 13d ；導航軟體為南方公司的導航5 . 0版。The water - depth computer monitoring system collects data from gps, multi - frequency fathometer ( 16 frequencies ) and plc network. based on the analysis of these data, a three - dimensional underwater ground profile is presented for the scheduled area of geotextiles - laying, the development tool of the three - dimensional underwater ground profile is opengl. this thesis is organized into five chapters
水深計算機監控系統採集來自gps 、多通道測深儀（ 16通道）以及plc網路的數據，將這些數據進行處理后，顯示待鋪設軟體排的小區域內的三維水下地形，三維地形的開發採用目前國際上流行的三維圖形介面opengl 。The dissertation has upstanding reference value to underwater geomorphological measurement system, for instance reservoir region, lakes, as well as measuring the flotage and underwater precipitation
本論文對於水庫、湖泊等水下地形地貌測量具有良好的參考價值，也可用於海洋探測及對水中漂浮物或水下沉澱物的測量。Gps - rtk submarine landform survey technology using in mushanhu regulating works
無驗潮水下地形測量技術在牟山湖整治工程中的應用Application of gps rtk to survey relief map under water of zhaopingtai reservoir
技術在昭平臺水庫水下地形測量中的應用Subaqueous topographic survey technique by gps rtk
水下地形測量技術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。Gps underwater topographic survey without tide gauge
進行無驗潮水下地形測量Besides, based on the computer graphic techniques, the author also studied the nature of subject projection, texture and lightning to generate three - dimensional vision of surveyed seafloor
同時利用計算機圖形學的相關知識，對三維地形圖進行材質、光照設置，逼真地反演出水下地形。Underwater topographic survey with tide - free mode made with the digital deep sounding apparatus and the gpsrtk
相結合進行無驗潮模式水下地形測量This system can be used to monitor the change in the underwater ground profiles during the geotextiles - laying process. all the data related to the process is recorded by the system. the system can predict and analyze the ground sections that have potential impact on the geotextiles - laying, and improve the quality of the geotextiles - laying
通過水深監視系統，操作人員可以掌握鋪排過程中水下地形的變化情況，對可能影響鋪排效果的地段作出前期的預測和處理，提高鋪排的質量，並且記錄鋪排過程中的各種數據，作為檢驗鋪排質量和施工效果的依據。This thesis develops computer monitoring system of water depth of the automatic control system for the geotextiles - laying boats used for the yangtze river
本課題依據長江航道鋪排船自動控制系統，完成鋪排船集控臺上水深計算機監視系統的開發，研究水下地形的模擬和再現。Are automatically formed by the mapping software in computer and the other correlate function can also be realized, on the above digital map there are 300 square kilometers of the underwater topography surveying in lake dianchi with the gps - rtk technology
該項目利用gps - rtk技術測量了滇池水域300平方公里水下地形，縮編了已有的湖濱帶約150平方公里1 ： 2000地形圖，總共提交了滇池區域約450平方公里的1 ： 10000的數字化地形圖。Sync on time in underwater topographic measurement using navigation signal from gps receiver
實時動態測量在故縣水庫水下地形測量中的應用Underwater topographic survey with gps under no - tidal mode
在無驗潮模式下進行江河水下地形測量Real time seafloor tracking technique is the critical technique to ensure smooth seafloor surveying with full coverage and high efficiency. after detailed investigation on stochastic features of seabed reverberation produced by mbss systems, the author presented an algorithm and a set of relevant key coefficients for real time seafloor tracking, taking into account of characteristics of signal processing and timing sequence of the real system and introducing theorems of terrain surveying. as an achievement, a mathematical model was established based on the technique of centered filtering
海底地形實時跟蹤技術是保證多波束測深系統實現高效率全覆蓋水下地形測量的核心技術，作者通過對多波束測深系統海底回波信號統計特性的研究，依據地形測量理論，並結合實際系統信號處理的技術特點和處理時序，提出了實現海底跟蹤控制的關鍵參數及計算方法，建立了基於中值濾波技術的海底地形實時跟蹤數學模型，並開發出實時地形跟蹤專家系統，該系統經多次海上實驗驗證表明：理論正確、方案可行，取得良好效果。Monitor and analysis of underwater terrain in longwangmiao dangerous section in wuhan city
武漢市龍王廟險段水下地形監測及分析Developing the use of dgps in underwater topographic survey
水下地形測量技術分享友人