高程導航 的英文怎麼說

中文拼音 [gāochéngdǎoháng]
高程導航 英文
vnav vetical navigation
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 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. It makes use of resource of the chip, realizes the development of every module, achieves distilling of telegraphese, builds up new frame, calculates the position and provides external interface. in the section of calculating the position, the author combines the two measures of carrier phase position and code position. finally, in the platform of matlab, the author completes the function simulation of main modules

    概述了接收機的設計原理;詳細描述了基於ti公司的tms320c6713dsp晶元的系統程序設計中各模塊的實現，利用該晶元的資源，實現各模塊的調度，完成對導航電文的提取，重新組幀，定位解算以及對外介面;在解算部分，把載波相位定位與碼測距定位相結合，利用載波相位對偽距的平滑來提高定位精度;在matlab平臺下進行了各模塊的功能模擬測試，以模擬結果的圖表來分析說明了載波相位平滑偽距的兩種演算法能使定位精度有一定的提高。
  2. 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。
  3. Recently, according to the requirements of some important gps research subjects in the fields of geodesy, geophysics, space - physics and navigation in china, we studied systematically how to correcting the effects of the ionosphere on gps, with high - precision and accuracy

    根據當前大地測量、地球物理、空間物理和導航等領域的科學研究和工程應用中的若干重要gps科研項目的需要，近年來，我們系統研究了電離層延遲的高精度模擬和改正方法。
  4. Jwebunit provides a high - level api for navigating a web application, combined with a set of assertions for verifying the correctness of navigation via links, form entry and submission, table contents, and other typical business web application features

    Jwebunit提供了導航web應用程序的高級api ，並組合了一組斷言，用它們來驗證鏈接導航、表單輸入項和提交、表格內容以及其他典型商務web應用程序特性的正確性。
  5. Specification for calculation of interference effects of ac highvoltage overhead power transmission lines on nondirectional beacons

    高壓交流架空送電線無線電干擾對中波導航影響的計算規程
  6. Specification for calculation of interference effects of ac high voltage overhead power transmission lines on non - directional beacons

    高壓交流架空送電線無線電干擾對中波導航影響的計算規程
  7. When the ground engineers arrived, it was discovered that five tyres were deflated automatically by the built - in safety device. eventually, all eight wheel tyres and brake assemblies were replaced before the aircraft was released for service. in hindsight, the tower controller could have been more inquisitive in respect of the hot brake situation so as to assist the pilot to cool down the brakes as much as possible

    當ci665離開跑道后，因為機師沒有表示需要停下來，所以航機被指示繼續滑行預備再次起飛，在到達等待點時，機師報告由於航機在緊急煞停時產生高熱導致三個輪胎放氣，在地面工程師抵達進行檢查，發現飛機內置的安全裝置使五個輪胎自動放氣，稍後，該航機更換全部八個輪胎及煞掣組合后，才再投入服務。
  8. Then this paper introduced the main method in multi - sensor integrated navigation - kalman filtering method, and a two - level optimization multi - sensor information fusion structure - combined filter which was originated by carlson and kerr, based on the structure of combined filter, it studied the method of navigating by the multi - sensor navigation system integrated by ins milemeter altimeter and piloting, then analyzed the effect of several filters. simulation proved that when altimeter were integrated, the height error was reduced a lot, and the combined filter is more effective than one - level kalman filter

    然後，介紹了組合導航中的關鍵技術? ?卡爾曼濾波方法，以及一種二級最優多傳感器融合結構? ? carlson ， kerr等人提出的聯合濾波器，並以聯合濾波器的結構為基礎研究了車載捷聯慣導系統與里程計、氣壓高度計、地標組合導航的方法，比較了幾種組合方法的效果。模擬結果表明，引入氣壓高度計可以有效的減小高度誤差，二級聯合濾波器的效果優於一級結構的卡爾曼濾波器。
  9. The new d - atis and d - volmet facilities represent the first operational system of the 18 - year long satellite - based communications, navigation and surveillanceair traffic management systems project undertaken by cad since 1999 to enhance flight efficiency and further improve safety

    新服務是衛星通訊、導航及監察航空交通管理系統工程中首個啟用的設備。民航處於一九九九年起開展這項共需時十八年完成的基建工程，以提高飛行效率和進一步提升飛行安全。
  10. And in allusion to the shortcomings on the fitting of noises by least square, a new procedure is presented to modify the estimations of model parameter of the noise. it can control the effects of the correlation noise of except for first order self - correlation noise. using the model the error of gps / ins integrated navigation system is estimated

    再次，針對卡爾曼濾波方程的前提條件不滿足而影響導航系統的精度的問題，應用時間序列分析理論提出了一種改進的噪聲模型參數估計演算法，對此演算法進行建模，模擬結果表明，該演算法能有效的控制一階自相關特性以外的噪聲對參數模型估計的影響，提高卡爾曼濾波精度。
  11. The new positioning system which employs three geostationary satellites emitting radio signals to users just like the gps satellites do, and allows the users receiver to solve position based on the received radio signal as well as the reading of electronic map, the drawbacks of double - star navigation system are overcome

    三顆同步導航衛星像gps衛星那樣向用戶播發導航電文，用戶接收機根據這些導航電文信息以及電子地圖高程數據，像gps接收機那樣解算用戶位置，從而克服了雙星定位的兩大缺陷。
  12. The research is already brought into a type of project, and it has important significance in improving precision of airplane navigation system and capabilities of flight control system and firepower control system

    該項研究已納入國家某工程型號任務之中，對提高飛機導航系統精度及飛控與火控系統性能有重要意義。
  13. Use the magnetic vector for the observation information, the paper estimate the location and rate of the satellite, analysis of simulation results and the sources of error. to further enhance navigation accuracy, the paper study the unscented kalman filter, compare with the extend kalman filter. in the same initial conditions of the extend kalman filter, we do the simulation

    其次，基於磁環境模擬系統的測量數據，本文研究了擴展卡爾曼濾波演算法，建立了衛星的運動學和動力學方程，以地磁場矢量為觀測信息，對衛星位置速度進行了估計，並分析了模擬結果及誤差來源，為了進一步提高導航精度，本文又研究了unscented卡爾曼濾波演算法，給出了原理及步驟，並與擴展卡爾曼濾波進行了比較分析。
  14. For the reason that this method use the arrangement of characteristic light spot directly to avoid the aberrance that come out during calculating in traditional method, it can improve the estimation precision of position and attitude. besides, it provides a certain degree of redundancy to the visual navigation system

    由於該演算法直接利用特徵光點的幾何配置條件，避免了傳統演算法在計算過程中出現畸變的問題，從而提高了位置和姿態角估值的精度，並使月球車的視覺導航系統具有一定的冗餘性。
  15. This platform employs windows ce. net as operation system, and applys the technology of embedded program - embedded visual c + +. a vector electronical map system is setup. we can display vector map, zoom and roam the map in that system, further more, simple management of map layers and demand information are also realized, further more, we put forward borderline - detection arithmetic to improve speed of display when we roam the map

    開發平臺以windowsce . net為操作系統，運用embeddedvisualc + +嵌入式編程技術，建立了一個矢量電子地圖系統，實現了矢量電子地圖的顯示、縮放、漫遊、圖層管理以及簡單的數據查詢導航功能，提出了用邊界檢測演算法提高電子地圖漫遊時的顯示速度。
  16. The thesis develops new techniques on the basis of the relating documents - - construct of reduced 2 - d indexed layered guide star database. the database is a uniform storage reduced guide star database with improved 2 - d index it divides guide stars to local bright star ( lbs ) and local dim star ( lds ), and gives priority to lbs in making star triangle to reduce the number of stored triangles. it uses 2 - d na index and linear storage to improve the hit the target rate, save the memory for index

    精簡二維索引分層導航星庫，作為一種統一存儲的精簡、索引導航星庫，採用星的分層方法精簡導航星庫，以局域亮星為主構造導航星三角形，減少了星三角形的數量，節約了存儲空間；採用索引方法檢索導航星三角形，提高了命中效率，節約了搜索時間；採用n劃分和線性存儲的方法精簡索引，提高了二維索引的存儲效率；採用索引的邊緣擴充方法，可以在一定程度上減少位置誤差的影響。
  17. The fourth part is the main parts of this paper, and it points out the main prombles and counter - measures from five aspects, including propelling standardization in china academic information resources joint building and sharing, establishing perfect mechanism of joint building and sharing, advancing the development of academic characteristic information resources, propelling guiding system of academic information, and raising the documents and information delivery efficiency

    第四部分是論文的主體，從五個方面分析了中國高校信息資源共建共享中存在的主要問題及發展對策，即：加速高校信息資源共建共享中的標準化進程、完善高校信息資源共建共享機制、加快高校特色信息資源體系的建設、促進高校知識信息導航服務體系的發展、提高高校文獻信息的傳遞效率。
  18. It has been proved by lots of examples we can improve greatly our work efficiency and service quality by integrating advanced it methods into engineering areas. for vessel traffic services ( vts ), though it has used some new technologies to improve its efficiency and service quality, advanced it methods still should be employed into its daily maritime management to promote vts working level

    對于vts系統來說，從最早的導航燈塔開始，多年來雖然運用了一些較為先進的工程技術提高了管理效率和服務質量，但是隨著海事交通運輸量的增加和計算機網路技術的快速發展，對vts系統進行進一步的改進，在日常海事管理服務中運用先進的計算機網路技術提高其信息化和網路化程度，已經成為大勢所趨。
  19. It is very boortan for our counny naval bullding to develop ship inertial navigation system ( sins ) which has miniaturizaion, well price and accuracy aimed at a practical engineering project, the paper completes design and realization of platform inertial navigation system

    研製小型化、價格適宜、中高精度的船用慣導系統對我國的海軍建設具有十分重要的意義。本文以實際工程為背景，完成了平臺式慣性導航系統的軟體設計與實現。
  20. This thesis introduces the key technique of the us military distributed information system, with focuses on algorithms about related navigation of military tactics. kalman filtering combined with least square method is proposed for the current military development stage. the method of observation result including velocity component minimizes the convergence time, improves the positioning precision and acquired satisfied experiment results, which makes the pla independence of the us high - tech equipments

    本文簡要介紹了現階段美軍在戰術信息分佈系統實現中所採用的關鍵技術，重點對戰術飛機相對導航的各種實現演算法進行了深入探討，針對我軍當前在該系統領域中的技術現狀，提出了以最小二乘法輔助卡爾曼濾波，濾波過程中觀測量加入速度分量的方法，縮短了導航濾波起始階段的收斂時間，提高了定位精度，在工程上取得了較理想的實驗數據，在一定程度上擺脫了我軍在相對導航領域對美軍先進技術裝備的依賴。
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