水下導航 的英文怎麼說

中文拼音 [shuǐxiàdǎoháng]
水下導航 英文
underwater 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）
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  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. 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。
  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. This thesis adopts empirical research methods, with changjiang communication navigation bureau as a study object, under the guidance of the public financial theory and with zero - base budget idea and activity - based costing system applied ; it provides the general thought by which we investigate each itemized outlay ration standards using the method of sourcing " the chain of the reason of necessary cost " and provides the idea of distributing the common cost in the light of the actual time of the non - commonweal and commonweal communication, researching the method of investigating the budget ration standards of over - water commonweal communication institutions. the research harvest has important theoretical and practical sense to the over - water commonweal communication institutions when making budget

    本文採用實證研究的方法，以長江通信導航局為研究對象，在公共財政理論的指導下，運用零基預算和作業成本法的基本思想，研究了水上公益通信單位預算定額標準的測定方法，通過追溯「必要費用成因鏈」來測定各項費用定額標準和根據非公益性通信與公益性通信實際發生時間來分攤共同費用的思想，研究的成果對水上公益通信單位編制預算具有重要的理論和實踐意義。
  5. Compared to the traditional technology, aviator no longer depends on the ground navigation facility but is able to flight along the precise track ; besides, airplane could land safely and accurately even under the worst visibility, which has greatly improve the safety level of flighting

    與傳統技術相比，飛行員不必依賴地面導航設施即能沿著精準定位的航跡飛行，使飛機在能見度極差的條件下安全、精確地著陸，極大提高飛行的安全水平。
  6. Communication, can be made up gps ins underwater navigation

    可組成gps ins水下導航。
  7. High precision positioning for underwater submarine is a long lasting difficult problem in the field of underwater navigation and positioning

    潛艇水下高精度定位，長期以來一直是水下導航定位領域的一個難題。
  8. Usually, there are three available accesses for location underwater, inertial navigation, dead reckoning navigation, acoustic tracking location

    從目前來看，應用於水下導航的方法主要有：慣性導航、船位推算導航、水聲定位系統等方法。
  9. 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。
  10. Design of the doppler navigation system

    水下航行器組合導航系統設計。
  11. 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
  12. 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。
  13. Dead reckoning navigation needs little space, but has high precision. the paper solves the navigation system of " tset - 1 " auv based on the sensors available, and a compact soft has been developed. some experience has gotten during the song hua lake " s test

    本文針對「試驗- 1號」小型機器人導航系統要求和傳感器的配備情況，從工程實用性出發，完成了導航軟體的開發，並進行了松花湖試驗，這為今後水下機器人導航系統的研究與應用提供了有益的借鑒，積累了一定的經驗。
  14. 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。
  15. An approach to multitask scheduling for underwater vehicle guidance simulation system

    水下航行器制導模擬系統多任務調度方法
  16. The application of gps real time kinematic to the underwater topographic survey of guxian reservoir

    導航信號進行水下地形測量的時間同步
  17. Mainly used for large - scale athletic carrier determining self -

    主要用於大型水下運動載體確定自身導航航跡
  18. Research on simulation system for navigation of autonomous underwater vehicle

    自主式水下潛器導航模擬系統研究
  19. As the traditional navigation system ca n ' t satisfy the requirements of the autonomous underwater vehicles ( auv ) navigation and position. we study a depthometer - doppler - aided strapdown inertial navigation system ( ddsins ) in combination of the developments of periodic navigation technique and some practical problem posed by the mathematical and variation of output data of doppler, furthermore, the digital simulation and semiphysica test are made to verify the validity of the algorithm, the main research work are as follows : design of the strapdown inertial navigation system of auv

    由於傳統的導航系統很難滿足遠程水下航行器精確導航、定位的要求，本文在充分考慮使用特殊性的情況下，結合國內、外導航技術發展的實際狀況和發展方向，研究了水下航行器組合導航系統的誤差，重點解決了因多普勒輸出數據周期長和周期時變而給導航計算和濾波器設計帶來的問題，並進行了模擬和實物測試，模擬和實物測試結果表明本文所研究的設計方案合理，可以達到某型水下航行器導航、定位需要的精度。
  20. From september 23 to october 8, 1997, tentative groundwater exploration was carried out by y11b aerogeophysical ( electric / magnetic ) integrated station and gps navigation locating in anxi - dunhuang area, gansu province

    摘要1997年9月23日~ 10月8日，在甘肅省安西敦煌地區用y11b航空物探（電磁）綜合站和gps導航定位進行了地下水勘查試生產工作。
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