正航信號 的英文怎麼說
中文拼音 [zhēnghángxìnháo]
正航信號
英文
on-course signal-
The goal is to design a digital receiver used in secondary surveillance radar system
具體目標是設計應用於航空管制的二次雷達數字化接收機，實現對機載應答器應答信號的正確解調。I made sure, of course, that i should be taken ; but i was so distressed for want of water, that i scarce knew whether to be glad or sorry at the thought ; and long before i had come to a conclusion, surprise had taken entire possession of my mind, and i could do nothing but stare and wonder
就在我正前方不到半英里處，我看見伊斯班裊拉號正在航行，我堅信他們當然要把我抓住。但我實在口渴難忍，幾乎不曉得這是喜是憂，就在我還未來得及下結論的當兒，我已驚愕得不知如何是好，睜大眼睛獃獃地望著。There must be a marine casualty happened every 4 days before 1984, the amount of marine casualty happened at this area corresponds to 1 / 7 amount of the whole changjiang " marine casualty, so mariners gave it a name as " mouth of tiger ". due to the specific geographical condition and the extremely representative vessel traffic management of changjiang yingongzhou channel section, many intelligent people began researching and practicing the vessel traffic management of this changjiang " s down - stream complicated channel section from 1980s, at dec 15th 1984 the authority at that time - changjiang yingongzhou channel section previously ; up to the last years of 1980s ministry management administration applied traffic control on changjiang yingongzhou channel section previously, up to the last years of 1980s ministry of communications assigned shanghai marine college, shanghai ship & shipping research institute and changjiang harbor superintendence administration to make feasibility demonstrate about modern vts of zhenjiang traffic control section ; in 1990 dasha radar station which is the first radar vts station with inner river was finished, groped a new way for applying modern radar traffic control of vessel traffic management ; in 1997 the vtms of changjiang " s down - stream from nanjing to liuhekou was completed with connecting net and came into operation formally, meanwhile the signals of dasha radar station were conveyed to vts center by light cable, and then united applying vessel traffic management upon the whole authorized area ; in jun 2001 jiangsu msa made changjiang yingongzhou channel section as the first experimental group of creating " civilized, safe, passable channel activity, updating dasha radar antenna and receive - transmitter building closed - circuit television monitor system, setting uo safety warning board, starting navigational route reformation, carrying out united construction
1984以前這里平均每四天就發生一起海損事故，事故數占整個長江的1 7 ，被行船人稱為「老虎口」 。長江尹公洲航段緣其極為特殊的地理區位條件和極具代表性的船舶交通管理，從上個世紀八十年代初就有識之士開始了這個長江下游最復雜航段的船舶交通管理探索和實踐。 1984年11月15日當時的長江航政管理局在長江尹公洲水域率先施行交通管制；到八十年代末交通部委託上海海運學院、上海船舶研究所和長江港監局聯合開展鎮江交通管制段建立現代化交管系統的可行性論證； 1990年大沙雷達站? ?內河第一座雷達交管站建成，摸索實施現代化雷達交管的船舶交通管理新途徑； 1997年長江下游南京至瀏河口船舶交通管理系統建成聯網投入正式運行，同時將大沙交管雷達信號通過光纜傳輸至交管中心，統一實施全轄區船舶交通管理； 2001年6月江蘇海事局將長江尹公洲航段作為第一批創建「文明平安暢通航段」活動試點航段，更新大沙雷達天線和收發機，著手閉路工業電視監控系統建設，設立安全警示牌，啟動航路改革，開展聯合「共建」 。The mssr mode s technology, which was introduced firstly for the purpose of air tranfic control ( atc ) system, is based on the individually addressing and selective interrogation technology. the mode s can overcome many problems exist in mode a / c, such as signal interference, limited aircraft identification, garble and fruit, and provides the ability to build digital data link. many countries and organizations do them best to support researches about the communication, navigation and surveillance technology, which are all based on the mode s, and many productions have been adopted step by step by the international civil aviation organization ( icao ). so, to research the key technologies of mode s will contribute a lot to the development of domestic aviation system, especially for the air control system, identification friend foe and navigation system
它建立在獨立編址、選擇性詢問的基礎之上，能夠解決在模式a / c中存在的信號干擾、有限的信息編碼、幻影（ garble ）和異步應答（ fruit ）等問題，同時在數據鏈路方面有著巨大的潛力。國際上，模式s的數據鏈技術得到了廣泛的關注，許多國家和組織大力支持基於模式s的通信、導航和監視技術以及航空管理新技術的研究，許多成果正逐步被國際民用航空組織（ icao ）所採用。因此，對模式s核心技術的深入研究對於我國在航空管理、敵我識別、導航等方面的發展有著重大的意義。In order to receive the data correctly and store it in computer for analysis and process, a kind of space tracking data recording system based on pci bus is designed and realized in this dissertation, which enhance the space tracking system ’ s integrality
本課題正是在這種應用背景下，通過設計基於pci總線的數據錄取系統，對航天測控系統地面站綜合基帶設備數字接收機所接收的中頻采樣信號和解調后的數據進行接收和存儲，將其送到監控計算機中進行調制方案驗證和數據分析，從而進一步完善了航天測控系統的設計。Resolving - transformers is a kind of component that converts the rotor corners to electrical signals, one has sine functional relationship with the rotor - comers, while the other has cosine ones, and this component has been widely used in many fields such as automatic controls, aviation and firepower fields to implement the information transmission of shaft - angle between systems
正餘弦旋轉變壓器是一種將轉子轉角變換成與之成正餘弦函數關系的電信號的元件，被廣泛應用於自動控制、航空、火力控制等領域，以實現系統之間軸角信息的傳輸功能。In the management of city transportation, navigation of satellite cannot meet the practical requirement because of shielding and interfering of satellite signal. therefore, map matching and dead - reckoning ( dr ) is used to assistant navigation. this combination is defined as gps / dr integrated navigation system, in which the map matching is used for correcting the orientation and distance errors of dr
而在城市交通管理的應用中，由於衛星定位信號經常會受到建築物的遮擋和干擾，衛星定位無法滿足導航的實際要求，通常需用地圖匹配和航位推算器（ dead - reckoning ， dr ）的方法進行輔助導航，這種導航方式稱為組合導航系統，其中地圖匹配可用來修正dr的方向和距離的系統誤差，以便在衛星信號失鎖時，提高dr自主定位的精度。However, although gps can provide worldwide real - time positioning service, the fatal shortcoming is that the positioning precision can be reduced sharply owing to the weak satellite signal which is blocked by buildings and trees etc. fortunately, gsm / gprs network can work and provide positioning service can transmit the position messages to remote users or servers
然而， gps定位雖然能實現全球范圍內的實時定位，但是對于gps來說，其很大的一個缺點是跟蹤衛星的信號常常由於建築物及樹木等的遮擋而使gps的定位精度大大降低，甚至無法進行正常的導航和定位。而基於gsm / gprs網路的位置服務恰恰能彌補gps定位的這一缺點，並且gsm / gprs網路能將位置信息傳送到遠端。Effect of atmosphere on satellite navigation signal delay and correction method
大氣層對衛星導航信號的時延影響及修正The guidance and beacons are wrong ? - we re heading for downtown
-導航儀和信號是錯誤的？ -我們正沖向市區分享友人