航天通信 的英文怎麼說
中文拼音 [hángtiāntōngxìn]
航天通信
英文
aerospace communications-
Space environment threaten orbited spacecraft " s safe functioning and astronaut " s health, influence greatly communication depended on based - space way, airmanship orientation, military detection, aim identification, weather observation and source exploration and so on by all sorts of function ( magnetic storm, solar proton event and so on )
空間環境通過各種效應（如磁暴、太陽質子事件等）對在軌航天器的安全運行及航天員的健康構成了嚴重的威脅，對依賴于天基手段的通信、導航定位、軍事偵察、目標識別、氣象觀測、資源勘探等等均有重要影響。The radio blackout ends as the spacecraft slows down.
隨著航天飛機減慢速度，無線電通信又重新恢復。In the stage of the sun and the moon in sight, azimuth of the sun, the earth and the moon in the spacecraft body coordinate system is simulated. combining the simulated azimuth with the ephemeris of the sun and the moon, the state equation and observation equation are modeled. the initial orbital parameters calculated by least square method are used in orbit state equation to predict spacecraft state and to realize autonomous navigation
在日月可見階段，模擬日、地、月敏感器測量信息，即日、地、月在航天器本體坐標系下的方位信息，結合日月星歷，建立狀態方程及觀測方程，通過最小二乘法得到歷元時刻的軌道狀態初始值，將其代入軌道狀態方程進行自主導航。Hunan aero - magnetoelectricity co., ltd ( short for am following ) is a state - owned enterprise with production value of a hundred million yuan per year. with the expanding scale, converting operation system and more extensive competition, the corporation has more commands in information, and tries to improve the enterprise manage efficiency and lever even the core competition by the means of all - round carrying out the erp system, introducing advanced modernized management, optimizing and reforming the enterprise organizing structure and operation circuit
湖南航天磁電有限責任公司是一個年產值近億元的國有企業，隨著公司規模的不斷擴大，運行機制的轉變，市場競爭的加劇，公司對信息化的需求越來越高，希望通過實施erp系統，引入先進的現代化管理，對企業組織結構、業務流程的優化和組合，全面提高管理效率、管理水平，並最終提高企業核心競爭力。Some enterprises headquarters have been introduced into the investment zone and become the newly developed industries, such as the second shipping board of china harbor, china sanjiang space group, hubei telecom, hubei mobile, hubei unicom, wuhan mobile communications, wuhan - guangzhou railway and wuhan - hefei railway
先後引進中港二航局、中國三江航天、湖北電信、湖北移動通信、湖北聯通、武漢移動通信、武廣鐵路、武合鐵路等總部企業，成為我區新興成長性產業。The beidou navigational system is characterized by the technical dominance of locating and navigation, data communication, noting time and also by the features of all - day - and - night long, totipotent, real time and continuity
北斗衛星定位導航系統是我國完全自主知識產權的軍民共用衛星定位導航系統，北斗導航系統具有集定位導航、數據通信、授時三大功能為一體的技術優勢和全天候、全能性、實時性、連續性的工作特點。Space technology is the most influencing technology of moden science and technology. with widespread use of application satellite, people pay more and more attention to high accuracy and durability attitude control system
航天技術是現代科學技術中最具有影響力的高技術之一，隨著通信、遙感等衛星的廣泛應用，高精度、長壽命的衛星姿態控制系統成為人們對衛星關注和研究的焦點。The most comprehensive promotion networks in the market eastpo has taken effective measures to attract professional visitors, which include using the powerful associations, such as china machinery industry federation ; holding influential conference, forum, symposia, etc ; advertisements and diversified publicity in print, online & electronic media ; extensive mailing of show tickets & news letter
多種渠道組織專業觀眾由中國機械工業聯合會牽頭，通過下屬的航空、航天、船舶、汽車等行業協會發文動員，積極組織企業會員參觀、采購；展會同期舉辦高質量的高層論壇、交流會等；斥巨資製作大型戶外廣告，每月直郵展會快訊，刊登廣告于專業網站及媒體等，展會信息直達120 ， 000國內外專業觀眾。Abstract : bridge function and generalized bridge function are all three - valued function, and are made by initial sequence according as copied or shifted ways. they include some familiar orthogonal function of non - sine, such as walsh function. this paper briefly introduced some research advance on this subject, emphasized to introduce the copy theory and generalized copy method. the process of making ( generalized ) bridge function, its property and application, were introduced briefly
文摘:橋函數和廣義橋函數均為三值函數系，都是將初始序列經復制方式和移位方式變換后而形成的.它們包括了一些常見的非正弦正交函數，如沃爾什函數和方波函數等.簡要介紹了近10年來北京航空航天大學通信與電子系統博士點在非正弦正交函數方面研究的一些新進展，重點介紹了復制理論和廣義復制方法，橋函數、廣義橋函數的復制生成方法、性質及其應用等專題Ningbo zhongxin wool textile group is a sharing enterprise, composed of aeropace communications holdings, co., ltd., ctrc co., ltd., ningbo zhenhai minlian economy devopment co., ltd., and ningbo zhenhai zhonglian investment co., ltd. it is a key backbone wool textile enterprise of zhejiang province, and the biggest woolen spinning enterprise in ningbo city
寧波中鑫毛紡集團有限公司是股份制企業，由航天通信控股集團股份有限公司中國紡織物資集團總公司寧波市鎮海民聯經濟發展有限公司和寧波市鎮海中聯投資有限公司投資組建，是浙江省毛紡重點骨幹企業，是寧波市最大的粗毛紡企業，佔地近十萬平方米，擁有凈資產They have been widely used in optical - fiber communication, satellite communication, super high speed computer, high speed measurement instrument, mobile communication, etc. since gaas is compound semiconductor, it is difficult to achieve high quality gaas crystal
Gaas器件與電路具有速度高、功耗低、噪聲小、耐高溫、抗輻射等優點，在光纖通信、衛星、超高速計算機、高速測試儀器、移動通信和航空航天等領域中有著重要的應用。Cables are widely used in various engineering fields, such as civil engineering, electric communication engineering and space engineering. the objective of this study is to develop lqr controllers for a tethered mass system
繩索被廣泛應用於橋梁、電力與通信工程、運輸、航空航天等諸多領域，如水下拖拽系統、繩系衛星系統、索拉橋、吊裝系統等。How did you send the letter, by airmail or by ordinary mail
你是怎麼發送的這信，是通過航天郵件還是普通郵件？The remote sensing refers to air to ground one, namely from different working platform far away the ground ( for example gao ta, balloon, airplane, rocket, the artificial earth satellite, spaceship, aerospace craft and so on ), through the sensor, exploring the information ( radiation ) to the earth ' s surface electromagnetic wave, and after the information transmission, processes, estimation and analysis, it can be regarded as a kind of comprehensive technology of surveying and monitoring earth ' s resources and its environment
摘要遙感是指空對地的遙感，即從遠離地面的不同工作平臺上（如高塔、氣球、飛機、火箭、人造地球衛星、宇宙飛船、航天飛機等）通過傳感器，對地球表面的電磁波（輻射）信息進行探測，並經信息的傳輸、處理和判讀分析，對地球的資源與環境進行探測和監測的綜合性技術。Allowing uavs to fly alongside airliners will require them to develop the means to “ sense and avoid ” other planes ; new air - traffic control systems, based on electronic rather than voice communications, will also be needed
允許無人機與各航班的飛機在同一片天空飛行就需要這些無人機能具有「感應與避免」其它飛機的功能；而基於電子通信而不是語音通信的新型空運控制系統同樣也將成為必需。An international, non - profit - making, non - governmental organization, with the main aim of the development throughout the world of sport aviation and astronautical activities through specific objectives : to make evident the essentially international spirit of aeronautics as a powerful instrument for bringing all people closer in mutual understanding and friendship regardless of political, racial or religious considerations, thereby helping to create international good will and thus build a better and more peaceful world ; to bring together the air sports men and women of the world in international competition ; to educate young people through sport in a spirit of mutual understanding and friendship ; to coordinate its members " separate efforts to further aeronautics and astronautics throughout the world ; to protect and safeguard the interests of its members in the use of air space ; to provide a forum for the exchange of information and discussion of mutual problems with other elements of civil aeronautics
該聯合會是非盈利性、非官方的組織，主要目的是通過以下特定目標，發展全球航空運動和航天活動：將國際化航空精神作為強有力的工具，使人們摒棄政治、種族或宗教束縛，以促進人與人之間的相互了解和友誼，從而產生國際友好並建設一個更好、更和平的世界；將參加空中體育運動的男性與女性組織起來參加國際比賽；通過空中體育運動教育年輕人懂得如何取得相互的理解和友誼；通過同會員們齊心協力共同為世界航空航天事業發展而努力；保障會員們在空域使用中的利益；為與其他民用航空部門交流信息和討論互動問題提供論壇。An international, non - profit - making, non - governmental organization, with the main aim of the development throughout the world of sport aviation and astronautical activities through specific objectives : to make evident the essentially international spirit of aeronautics as a powerful instrument for bringing all people closer in mutual understanding and friendship regardless of political, racial or religious considerations, thereby helping to create international good will and thus build a better and more peaceful world ; to bring together the air sports men and women of the world in international competition ; to educate young people through sport in a spirit of mutual understanding and friendship ; to coordinate its members ' separate efforts to further aeronautics and astronautics throughout the world ; to protect and safeguard the interests of its members in the use of air space ; to provide a forum for the exchange of information and discussion of mutual problems with other elements of civil aeronautics
該聯合會是非盈利性、非官方的組織，主要目的是通過以下特定目標，發展全球航空運動和航天活動：將國際化航空精神作為強有力的工具，使人們摒棄政治、種族或宗教束縛，以促進人與人之間的相互了解和友誼，從而產生國際友好並建設一個更好、更和平的世界；將參加空中體育運動的男性與女性組織起來參加國際比賽；通過空中體育運動教育年輕人懂得如何取得相互的理解和友誼；通過同會員們齊心協力共同為世界航空航天事業發展而努力；保障會員們在空域使用中的利益；為與其他民用航空部門交流信息和討論互動問題提供論壇。There are a good many actual significances for the miniaturization of microstrip antennas in the fields of modern communication, navigation, orientation, and electronic countermeasure, etc. the research and exploitation of compact antennas with high performance are becoming one of the hotspots in the antenna field
微帶天線的小型化已成為現代通信、導航、定位、電子對抗等領域的研究熱點之一。目前，國內外研究者已經提出了很多關于微帶天線的小型化的實現方法，包括採用特殊材料、特殊結構或附加有源網路等。In modern communication, direct sequence spread spectrum communications was widely used in the fields of telemetering and telecontrol systems, because of low interception probability, its high noise resistance and good security
在現代通信中，直接序列擴頻通信技術以其截獲概率低、抗干擾性強、保密性高等優點，在航天測控領域得到了廣泛的應用。In the last chapter, a summary and some expectations for the research work are listed. the visualization support platform for space experiment and simulation has been applied to one space experiment and its demonstration, and some relative space projects simulation, which shows its important practical significance for space experiment and simulation
空間試驗與模擬可視化支撐平臺已應用於總裝跟蹤與通信研究所某空間試驗任務和某空間任務演示驗證，航天科技集團12所， 14所和航天科工集團17所相關航天任務模擬系統，具有較大的現實意義和應用價值。分享友人