海底地形圖 的英文怎麼說

中文拼音 [hǎidedexíngtú]
海底地形圖 英文
bathymetric chart
  • 底 : 底助詞（用在定語后, 表示定語和中心詞之間是領屬關系, 現在多寫作「的」）
  • 圖 : Ⅰ名詞1 （繪畫表現出的形象; 圖畫） picture; chart; drawing; map 2 （計劃） plan; scheme; attempt 3...
  1. Specifications for bathymetric charts

    海底地形圖編繪規范
  2. Today enough soundings are available to enable a relief map of the atlantic to be drawn.

    今天可以得到足夠的水深資料來繪制大西洋的海底地形圖。
  3. Today, enough soundings are available to enable a relief map of the atlantic to be drawn and we know something of the great variety of the sea bed ' s topography

    現在已有足夠的水深測量數據來繪制一張大西洋洋底地形圖，而且我對海底地形的千變萬化也有了一定的了解。
  4. 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。
  5. Permanent surveying markers as referred to in paragraph 1 of this article include wooden or steel signals and stone markers established at triangulation points, baseline points, traverse points, military control points, gravimetric points, astronomic points and leveling points of various orders and classes, as well as fixed markers used for topographic mapping, engineering surveying and deformation measurement, and installations at seabed geodetic points

    第一款所稱永久性測量標志，是指各等級的三角點、基線點、導線點、軍用控制點、重力點、天文點、水準點的木質覘標、鋼質覘標和標石標志，以及用於地形測圖、工程測量和形變測量的固定標志和海底大地點設施等。
  6. The digital map is usually formed by the water depth ' s database measured on the seabottom. because of the disadvantage that the database is kept secret, this dissertation introduces a new method : first, the depth data are picked up from the electronic chart, then interpolation of the depth datum by kriging algorithm is adopted to gain the digital map. the method is the precondition of the terrain matching when it is researched by simulation, and it is the complement of the database

    通常數字地圖都是通過海底測量的海底水深數據庫來形成，針對水深數據庫存在保密性等特點，本文提出了一種從電子海圖提取水深數據，然後採用kriging方法進行插值形成數字地圖的方法，該方法是進行地形匹配模擬研究的前提，而且它也是海底水深數據庫的一個補充。
  7. When choosing evaluative indexes, we take four aspects of fatalness of sea level rise hazards, vulnerability of land system, socio - economic and ecological vulnerability, and defending ability. we draw the map based on the relief map and the land utilizing map of 1 : 100000 scale, gain altitude values ( range of 1 km 1 km ) and the fundamental data of evaluation in the studied area using the software of mapinfo and socio - economic statistic data

    運用mapinfo軟體和社會經濟統計數據，以盤錦市1 ： 100000地形圖和土地利用圖作為底圖，獲得地面1km 1km范圍高程值以及評估單元基礎數據，並計算出在沒有防護、不同潮位背景、海平面上升不同高度的條件下，遼河三角洲未來海平面上升將淹沒的土地面積、受災人口和經濟損失，以及不同土地利用類型的淹沒面積及相應的經濟價值。
分享友人
分享到 Line

分享到臉書