水下航行 的英文怎麼說

中文拼音 [shuǐxiàhángháng]
水下航行 英文
submarine navigation
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 航行 : 1 （水中行駛） navigate by water; seaway; sail 2 （空中行駛） navigate by air; fly 3 voyage; 航行...
  1. In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane

    本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題，具體成果和創新點如下1 、根據流體力學理論，建立了螺旋槳推進器的動態模型，它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量，以電機施加轉矩為輸入，螺旋槳推力t和轉矩q為輸出。
  2. Analysis of shell dynamic characteristics of underwater vehicle

    水下航行器殼體動特性分析
  3. 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。
  4. A friction drag testing system for the underwater axi - symmetrical vehicle model

    一種軸對稱水下航行器模型摩擦阻力測試系統
  5. Nonlinear model based predictive control ( nmpc ) not only is a valuable approach for solving practical control problems, but also is the frontier of nonlinear control theory. the perceptible successes of mpc strategies can be attributed to several factors including its inherent ability to handle input and output constraints, time delay and incorporation of an explicit model of the plant into the optimization problem. this dissertation discusses two kinds of nonlinearity ( or nonlinear system )

    本文沿著理論研究與工程實際相結合的設計思路，較為系統和全面的研究了非線性模型預測控制理論，提出改進新演算法；探討了非線性模型預測控制理論在自主水下航行器控制系統設計中的應用，豐富和發展了模型預測控制理論，本論文的主要工作及意義有以下幾個方面： 1 ）從工程應用的角度研究有限域無終端約束廣義預測控制穩定性充分條件，為有約束廣義預測控制穩定性研究奠定了基礎。
  6. As the cumulate error, inertial navigation system ca n ' t provide perfect position and navigation for the autonomous underwater vehicles ( auv ) in unstructured, complex and instable ocean in a long time. the application of terrain - aided navigation techniques to the updating of an inertia navigation system has been investigated

    慣性導航系統是實現水下導航的一種重要方法，但慣性導航存在累計誤差，為了修正慣性導航的累積誤差，提高導航精度，本文將飛機、導彈等所使用的地形輔助導航系統，應用到水下航行器上，成功地滿足了自主水下航行器的導航需求。
  7. Design of the simulation software for underwater vehicle

    水下航行器模擬軟體包設計
  8. Path planning algorithm for autonomous underwater vehicle

    一種自主水下航行器路徑規劃演算法
  9. Design of the doppler navigation system

    水下航行器組合導航系統設計。
  10. Distributed interactive simulation on underwater vehicle based on hla

    的水下航行器分佈交互模擬
  11. Object - oriented interactive virtual experiment platform

    水下航行器面向對象的分佈交互模擬軟體系統
  12. Research on visual simulation system of autonomous underwater vehicle

    水下航行器視景模擬系統的研究
  13. Spiral motion control and simulation of buoyancy - driven underwater vehicle

    浮力驅動式水下航行器螺旋線運動控制與模擬
  14. Information integration approach for underwater vehicle guidance system simulation

    水下航行器制導系統模擬信息集成方法
  15. Experimental investigation of ventilated supercavity on symmetrical underwater bodies

    水下航行體通氣超空泡非對稱性研究
  16. The program are compiled in matlab language. the program include inertial device ideal simulation block > inertial device error simulator block, strapdown inertial navigation calculator block, doppler calculator block, kalman block and so on. the different block can be used for inertial navigation simulation, doppler simulation and so on

    用matlab語言編寫了水下航行器導航系統的模擬程序，這個程序包括：慣性器件輸出理想值模擬模塊、慣性器件誤差模擬模塊、捷聯慣導計算模塊、多普勒導航計算模塊、卡爾曼濾波模塊，可根據不同的需要進行純慣導狀態模擬、多普勒導航模擬、組合導航模擬。
  17. Based on underwater vehicle ' s nonlinear differential equation and observation equations, swarm intelligence algorithm is used to identify ten hydrodynamic parameters from simulation observed data of the motions of underwater vehicle

    摘要通過水下航行體的狀態方程和試驗觀測方程，利用智能辨識技術對水下航行體的模擬運動數據進行了模擬辨識，求得了10個水動力參數。
  18. The connection of the velocity and self - - noise intensity is studied. then the spectral ana1ysis in the burg method and results is given out in high and 1ower ve l oc i ty

    採集到的數據進行了航速和自噪聲強度關系分析，採用burg法對自噪聲進行了譜分析，最終得到了該水下航行體高速和低速兩種狀態下自噪聲特性的分析結果。
  19. It is studied in thi s thesi s that the self - - noise data sampl ing in one underwater vehicles made in the institute of kunming 705 is get, then the pecu1 iarity analysis of noise and some results is given out in this thesis

    本課題首次對705研究所昆明分部研製的某水下航行體的自噪聲進行了實航採集，並對其特性進行了分析，得到了一些有價值的結果。
  20. An overview of the vehicle design along with description of all major hardware components and sensors is given. the arithmetic of auv control and navigation system is discussed in the paper. the methods of the implementation of gps and electronic compass aided heading control is provided

    設計了水下航行器的總體導航與控制方案：採用gps與磁通門傳感器相結合的路徑規劃與航向控制系統；以深度信息為參量的深度控制系統。
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