相位導航系統 的英文怎麼說

中文拼音 [xiāngwèidǎohángxìtǒng]
相位導航系統 英文
phase-measurement navigation system
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 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
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 相位 : phase position; phase
  • 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
  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. Chinese type 33g guided missile submarine chinese navy type 33g guided - missile submarine were developed from russian romeo class submarine by wuchang shipyard in 1980 and was launched in 1983. type 33g entered to service in 1985 after which was successful test by the navy. the armament of this chinese first generation missile attack submarine are six c801 anti - ship missile and 8 533mm torpedo tubes, sometimes this submarine will carry 20pcs of sea mines to instead the torpedo for the action

    該型艇在主尺度方面與33型潛艇相同，其不同之處是加裝了導彈，即在原33型潛艇上加裝了6具導彈發射筒6枚飛航式導彈，增加了自動測風儀方位水平儀和雷彈合用射擊指揮系統，改裝了雷達。
  4. However, the longer length of c / a code, the more hardware resource and power it cost. this dissertation commits research on algorithm of c / a code acquisition in satellite navigation position system, and compares the acquisition means of digital differential matched filter ( ddmf ) with traditional means, and also achieves ddmf with the vhdl language and fpga platform

    擴頻碼的周期的加長會給衛星導航定位系統帶來許多相應的好處，但問題也就隨著之而來了，擴頻碼的周期越長，同步捕獲所需得的時間就越長，而且若用傳統的并行捕獲方法，將極大的耗費硬體資源，而且系統功耗會隨之增大。
  5. First, they instigated automatic retrieval of such information as aircraft position, wind direction and speed directly from the on - board flight management system. the next problem was trickier : how to synchronize fms with another on - board system the flight deck recorder fdr or black box which recorded essential air navigation data

    他們建議從機艙內的「飛行管理系統」自動檢索飛機位置風向和風速，但隨之而來的問題卻相當棘手：怎樣使這個系統和錄取重要導航數據的「飛行記錄儀」兩個系統時間同步呢？
  6. 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確地描述進行曲線運動的載體; ukf演算法作為衛星導航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精度;其定位結果與商業數據處理軟體相比，可滿足定位精度要求，該演算法可以直接應用於衛星導航系統的軟體實現。
  7. Discussion topics cover pearl river delta air traffic management planning and implementation, the satellite - based communications, navigation and surveillanceair traffic management systems applications, latest development of the co - operation arrangement on mutual acceptance of approval of aircraft maintenance organisations signed by aviation authorities in the mainland, hong kong and macau, implementation of the regulated agent regime in hong kong to enhance air cargo security, safe transport of dangerous goods by air, and security audit conducted by the international civil aviation organisation

    討論議題包括珠江三角洲航空交通管理的規劃和實施，衛星通訊、導航及監察?航空交通管理系統的應用，由內地、香港和澳門民航局簽訂的互相認可航空器維修單位批準合作安排的最新發展，為提高航空貨運保安水平而實施的管理代理人制度，妥善空運危險品，以及國際民用航空組織進行之航空保安審計事宜。
  8. This system employed a new concept for measuring upper winds, viz. use of vlf very low frequency in the range of 10 - 13 khz signals from a global navigational network, omega, for computing the wind

    與以往無線電相比，該系統在測風方面則採用了一種新的概念，利用世界性奧米茄導航站網的甚低頻信號10 - 13khz來計算出高空風向和風速，無需用雷達追蹤探空儀位置。
  9. Measurement of pressure, temperature and humidity operated in much the same principle as the older version of radiosonde, but computation of wind was made use of the vlf ( very low frequency in the range of 10 - 13 khz ) signals of a world - wide navigational network, omega

    該系統量度高空氣壓、氣溫及濕度的方法與舊式無線電探空儀大致相同，但在測風方面則採用了一種新的概念，利用世界性奧米茄導航站網的甚低頻信號（ 10 - 13khz ）來計算出高空風向和風速，無需用雷達追蹤探空儀位置。
  10. Abstract : cruise missiles have the characteristics of concealment and unexpectedness, so effectively detecting cruise missiles is the crux of cruise missiles defence. in order to increase detecting distance and discovery probability for cruise missiles, we ought to synthetically utilize various measures to make up the all directions target detecting and information communicating system with emphasis, which combines air with ground, far with near, advanced measures with traditional measures

    文摘:巡航導彈具有隱蔽和突然的特點，對巡航導彈進行有效的探測，是抗擊巡航導彈的關鍵，綜合利用各種手段，組成空中與地面相結合、遠方和近方相結合，先進手段與傳統手段相結合的全方位、有重點的目標探測與報知體系，可增大對巡航導彈的探測距離，提高發現概率。
  11. The constitutions and principles of position of gps > glonass and beidou navigation system are described all around in this article, and the following technologies are studied and realized : communication between com ports with oop technology, compound navigation with gps and glonass. calculate velocity, pseudorange difference, smoothing pseudorange with the carrier - phase and models to correct error are also done ; the transforms between wgs - 84 and pz - 90, as well as wgs - 84 and beijing54 coordinate system ; the technologies to display and manage bitmap, vector map based on mapx also ; conversion of data formats between gjb and mif data format of maplnfo corp. arithmetic of creation dem data based on contour line data from 1 -. 25000 map data with gjb format. texture the surface of terrains with corrected aviation image

    本文全面介紹了gps 、 glonass 、北斗導航系統的組成、定位原理，研究並實現了面向對象的串口通信技術、 gps + glonass組合導航、測速及偽距差分、相位平滑偽距差分以及有關誤差的模型改正、 wgs ? 84和pz ? 90 、 wgs ? 84和北京54坐標系的坐標轉換、柵格地圖的顯示和管理、基於mapx的矢量地圖的顯示和管理、 1 : 25萬軍標數據和mapinfo的mif數據格式雙向轉換、基於軍標數據的dem生成演算法、基於opengl的三維地形構造、航空圖像紋理地形表面、三維坐標量算、虛擬現實模擬導航、三維地形的層次細化演算法以及數字圖像處理中的圖像增強、幾何變換、影像匹配等技術。
  12. 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;重點對巡航導彈導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導彈頭罩和飛機雷達艙罩隱身的相關理論，推導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，而且不影響精確制導的紅外線高效透過。
  13. First, it introduces the network control center of beidou satellite and the beidou satellite locating navigational system, which are the background of design and implementation of web service, and the function and status of web service in system. then, it totally analysis the identity and structure of web service, and expound several technologies of web service : the first is xml which is the base technology, the second is wsdl which is the interface description language of service, the third is soap which is communication and message transferring of service, the fourth is uddi which is the description, discovery and integration of service

    首先，對webservice的設計實現所在的系統背景? ?北斗衛星定位導航定位通信系統和民用網管中心進行簡要介紹，以及webservice在系統內的作用和地位；然後從總體上分析了webservice特性、體系結構，並闡述了幾種webservice的相關技術：第一，核心技術xml ；第二， web服務描述語言wsdl ；第三，服務組件的通訊和消息傳遞協議soap ；第四，服務組件的描述、發現和集成協議uddi 。
  14. 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。
  15. Comparing with the traditional dsss systems, the length of c / a code in beidou project is longer than that of them, which brings us some advantages

    相對于其他通信系統，衛星導航定位系統所採用的粗捕獲擴頻碼（ c / a碼）相對于傳統擴頻系統的擴頻碼的周期較長。
  16. The targeted readership of digital communication world includes : managers and technical personnel in administrative departments of various levels of the ministry of information industry, ministry of radio, film and television, ministry of aviation and space, and defense industry ; users of proprietary networks of maritime, transportation, petroleum, coal, water conservancy and public security ; communication operators, equipment manufacturers, equipment providers, system integrators, network service providers and users ; equipment manufacturers, operators of satcom, navigation and positioning, and earth observation ; enterprises of radio and television, all departments of radio, film and television at prefecture or county level, and relevant institutions and operators ; and experts, scholars, technical and engineering personnel, teachers and students of science research institutions, r & d organizations and universities

    《數字通信世界》的讀者對象：信息產業部、廣電系統、航空航天系統、國防軍工系統各級管理部門的主管及技術人員；海洋、交通、石油、電力、煤炭、水利、公安等專網用戶；通信運營商，設備製造商、設備供應商、系統集成商，網路服務商及使用部門；衛星通信、導航定位、對地觀測等設備商、運營商；廣播、電視企業和全國各地市縣級廣播電視局、臺、站等相關機構及運營商；科研機構、研發部門、專業院校的專家學者及廣大工程技術人員和師生。
  17. Decca navigator system : receivers for ships - minimum performance standards - methods of testing and required test results

    臺卡遠程連續波相位雙曲線無線電導航系統.船用接收機.最少性能標準.試驗方法和規定的試驗結果
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