精確導航 的英文怎麼說

中文拼音 [jīngquèdǎoháng]
精確導航 英文
pinpoint navigation
  • : Ⅰ形容詞1 (經過提煉或挑選的) refined; picked; choice 2 (完美;最好) perfect; excellent 3 (細)...
  • : 形容詞1. (符合事實; 真實) true; reliable; authentic 2. (堅固; 堅定) firm
  • : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
  • : Ⅰ名詞(船) boat; shipⅡ動詞(航行) navigate (by water or air); sail
  • 精確 : accurate; exact; precise
  1. Since the preload and the friction moment of the geminate bearing are dominating factors affecting the performance of the navigation platform frame system, based on theoretical study on the control methods of bearing ' s preloads and frictional moment, the paper puts forward a method to control the preload of the twin bearings accurately. moreover, a multifunctional test apparatus of the navigation platform bearing is designed, and a lot of experiments of bearing ' s rigidity and friction moment and preload assessment are done

    考慮到成對軸承預載荷和摩擦力矩是影響平臺框架系統性能的主要因素,本論文對成對軸承預載荷及摩擦力矩控制技術進行了理論研究,提出了一種控製成對軸承預載荷的配對方法,設計了平臺軸承多功能測試儀,並對平臺軸承的剛度、摩擦力矩和預載荷評定技術進行了試驗研究。
  2. Low earth - orbit satellites have become indispensable for u. s. military communications, gps navigation for smart bombs and troops, and for real - time surveillance. the chinese test highlights the satellites vulnerability

    低地球軌道衛星對美國軍事通訊、炸彈和士兵的gps及制和實時偵察至關重要。中國這次試驗凸現了衛星的脆弱性。
  3. But the shift of military attention to the soviet union, the refusal of european civil authorities to allow unmanned planes in their airspace, arms - control agreements and the perennial problem of accurate navigation over long distances conspired against uavs

    但是種種因素聯合起來針對無人機的實際應用,其中包括軍事焦點轉移到蘇聯、歐洲各國權力機構拒絕無人駕駛的飛機進入其領空、武器控制協議以及遠程精確導航所長期存在的問題。
  4. In the application of mini - micro - robot visual perception, there is a need for fish - eye lenses for capturing wide field of view for navigation. though fish - eye lenses provide a wide field of view ( 180 ), they introduce significant distortion in images and the acquired images are quite warped, which makes conventional camera calibration algorithms no longer work well. this paper presents an accurate calibration framework for fish - eye lens ( a high distortion lens ) camera stereo vision system. the accurate calibration model is formulated with radial distortion, decentering distortion and thin prism distortion based on the fisheye deformation model. using fish - eye and non - linear camera model, the author employs levenberg - marquardt method to realize precise non - linear calibration for wide - view - scene dense depth image recovery

    魚眼鏡頭成像立體視覺系統在微小型機器人視覺和近距離大視場物體識別與定位中有著廣泛的應用.盡管魚眼鏡頭攝像機具有很大的視場角(接近180 ) ,但同時也引入嚴重的圖像變形,常規的攝像機標定方法無法使用.該文提出一種標定魚眼鏡頭攝像機立體視覺系統的方法.在魚眼鏡頭變形模型的基礎上,通過考慮魚眼鏡頭成像的徑向變形、偏心變形和薄棱鏡變形,建立了魚眼鏡頭成像的成像模型,然後,利用非線性迭代演算法,求解攝像機外部參數、內部參數.實驗表明,使用該方法得到的立體視覺系統參數滿足恢復大場景稠密深度圖的要求
  5. It is a more feasible method to realize the missile ’ s firing accuracy, by studying scene matching, track following, the middle guidance law and the terminal guidance law

    比較可行的方法是抓住跡規劃、跡跟蹤、景象匹配、中制和末制等問題的研究,實現巡打擊目標。
  6. 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設施即能沿著準定位的跡飛行,使飛機在能見度極差的條件下安全、地著陸,極大提高飛行的安全水平。
  7. Instrument landing system ( ils ) a standard icao precision landing aid to provide accurate azimuth and descent guidance signals for use by aircraft for landing on the runway under adverse weather conditions

    這是國際民組織指定的標準著陸向設備,提供準的方向指示及下降指引訊號,即使在惡劣的天氣狀況下,機亦能安全地在跑道上降落。
  8. An ils is a standard international civil aviation organisation ( icao ) precision landing aid provides accurate azimuth and descent guidance signals for use by aircraft for landing on the runway even under adverse weather conditions

    這是國際民組織指定的標準著陸向設備,提供準的方向指示及下降指引訊號,令機即使在惡劣的天氣狀況下,亦能安全地在跑道上降落。
  9. By the simulation, it is indicated that the curve motion model based on the particle can describe the curve motion of the target. and it is shown that the performance of the ukf algorithm is more precise than the tradition nonlinear filtering technique. by the contrast between the simulation results and the positioning result of commercial data process software,

    模擬結果表明,基於質點的曲線運動模型可較準地描述進行曲線運動的載體; ukf演算法作為衛星系統的非線性濾波技術,較之傳統的線性濾波技術可獲得較高的定位度;其定位結果與商業數據處理軟體相比,可滿足定位度要求,該演算法可以直接應用於衛星系統的軟體實現。
  10. Therefore, in order to build a precise extended-time navigator, some means must be found to damp out these oscillations.

    因此,為了建成的長期工作的儀,一定要尋找某些方法來把這些振蕩阻尼掉。
  11. For toll collect and its shareholders did get one thing right : electronic toll - collection schemes and their underlying technologies probably will become the platform for all kinds of attractive new services, in particular when satellite - based navigation systems become more accurate

    對公路收費者和他們的合作人而言,他們作出了正的選擇:電子收費計劃及其潛在的技術應用為許多有吸引力的設備提供了一個新的平臺,特別是當衛星系統日益以後。
  12. 003601211 ) and hebei province ' s tackling key problem plan " the study of agv accurate navigation used in material automation transportation " ( no. 00547001d - 18 ). this thesis mainly focuses on the stereo vision technique used for the mobile robot, the main work includes : 1

    在天津市自然科學基金「面向復雜任務的移動機器人系統技術研究」 (項目編號: 003601211 )和河北省攻關計劃「用於物料自動傳輸的自主車精確導航的研究」 (項目編號: 00547001d - 18 )的支持下,本文對移動機器人的立體視覺技術進行了較為系統深入的研究,本文的主要工作包括: 1
  13. Ccd star sensor with a high accurary and precise mathematical model of starlight passing through the upper atmosphere is used to indirectly sense ths earth horizon, such that the attitude and orbit of the satellite can be accurately determine

    這種方案利用高度的ccd星敏感器,結合星光穿越大氣的較的數學模型,來間接敏感地平,從而實現對衛星的定位和定姿。
  14. Results of processing many images of agricultural field and scene of navigation experiments prove that the method based on region segmentation can detect the road correctly, the multi - resolution r oad detection based on wavelet transformation can easily analyze the image on different scaling, and can possess the power to get main contours while suppressing small edges when the scale is large

    大量的農田實際環境和實驗場景圖像處理結果表明,區域的方法可以正地檢測出路徑,基於小波變換的多解析度路徑檢測方法能夠方便地實現由粗及地多尺度分析圖像,在大尺度時具有抑制細小的邊緣得到景物主要輪廓的能力。
  15. 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

    由於傳統的系統很難滿足遠程水下行器精確導航、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、外技術發展的實際狀況和發展方向,研究了水下行器組合系統的誤差,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,可以達到某型水下行器、定位需要的度。
  16. It should detect categories of obstacle. in this paper, recognizing obstacle based on multisensor fusion technology is given. in the support of tianjin ' s natural science foundation " the study of mobile robot system technology faced to complicated task " ( no. 003601211 ) and hebei province ' s tackling key problem plan " the study of agv accurate navigation used in material automation transportation " ( no. 00547001d - 18 ), this thesis developed application study of information fusion based of multisensor in mobile robot ' s navigate autonomously. in this thesis, the main work and innovation include : the structure of hebut - 1 mobile robot is designed. furthermore, the driving system ' s characteristics and the kinematics features of the mobile robot are analyzed

    在天津市自然科學基金「面向復雜任務的移動機器人系統技術研究」 (課題編號: 003601211 )和河北省攻關計劃「用於物料自動傳輸的自主車精確導航的研究」 (課題編號: 00547001d - 18 )兩項基金的支持下,開展了基於多傳感器信息融合技術在移動機器人自主中的應用研究,本論文的主要研究內容如下:介紹了由本研究室自行研製的hebut -型移動機器人的車體結構並對驅動系統和運動學特性進行了分析。
  17. Finally, through analyzing the experimental data, such as infrared sensor range finding as well as local navigation, it is concluded that the strategies are able to satisfy the rules of the fira game

    分析了紅外傳感器測距實驗數據及局域實驗結果,驗證了紅外線傳感器度和策略能夠滿足比賽要求。
  18. Firstly, this paper summarizes modern weaponry stealth technology at home and abroad, and lays special emphasis on analyzing stealth problem of cruise missile ’ s guidance head cover, aerocraft radar canopy and other privileged sites. secondly it makes a research on related theories of transparent metallic mesh that applied to missile ’ s guidance head cover and aerocraft radar canopy, and deduces relational expression between transparent metallic mesh structural parameters and radar wave - shielding efficiency, infrared transmitting. we use laser direct writing technique to fabricate a metallic mesh ( dimension : 70mm 70mm ; line width : 5 m ; period : 350 m ) on glass surface, then do experiment to test radar wave - shielding of metallic mesh via radar transmitting and receiving device

    本文首先綜述了國內外現代武器系統隱身技術方法;重點對巡引頭罩和飛機雷達艙罩等特殊部位的隱身問題進行了研究,研究了金屬網柵用於彈頭罩和飛機雷達艙罩隱身的相關理論,推了金屬網柵結構參數對雷達波屏蔽效率和透紅外關系式;用激光直寫工藝,在玻璃表面上製作了一塊面積為70mm 70mm ,線寬為5 m ,線周期為350 m的金屬網柵;在實驗室里用雷達發射和接收裝置測試了網柵對雷達波的屏蔽實驗;認為利用金屬網柵技術對雷達波具有一定的屏蔽作用,而且不影響的紅外線高效透過。
  19. Including the testing of the validity of sensor data and the adapting of the q matrix in reai - time, the kalman filter is researched to improve the real - time, precision and robust of navigation system. with this method, the disturbances resulted from the many uncertainties in non - structure agricultural environment can be overcome, the movement of road line can be followed in the image space so that the technology of visual window can be used, the current measured state of wheeled mobile robot can be substituted by the predicted state to increase the real - time of control system

    包括傳感器數據有效性檢驗、 q陣自適應實時調整等內容,詳細地研究了利用擴展卡爾曼濾波理論改善系統實時性、性和可靠性的具體方法,以克服農田非結構化自然環境里存在的多種不定因素給系統造成的干擾,跟蹤圖像空間中路徑目標的運動而便於有效地利用視覺窗口技術,提供輪式機器人狀態的預測值代替實測值進行控制來改善控制系統的實時性等
  20. Satellite system for precise navigation

    精確導航衛星系統
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