電子分頻網路 的英文怎麼說
中文拼音 [diànzifēnbīnwǎnglù]
電子分頻網路
英文
electronic crossover network- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 頻 : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
- 網 : Ⅰ名詞1 (捕魚捉鳥的器具) net 2 (像網的東西) thing which looks like a net 3 (像網一樣的組織或...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 電子 : [物理學] [電學] electron
- 網路 : 1. [電學] network; electric network2. (網) meshwork; system; graph (指一維復形); mesh
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The maturity of stream media and cdn technologies will surely give a revolutionary impetus to broadband content and even to the entire broadband industry. they will provide end users with internet - based information services such as multimedia news release, on - line direct broadcast, network - based advertisement, e - commerce, vod, distance education, remote medicine, internet - based radio station and videoconferencing, and yield a comfortable profit to the value chain of the broadband industry, including operators, icps and isps. 2
流媒體技術的發展和內容分發平臺的成熟,必將為寬帶內容提供革命性的推動力,必將喚醒整個寬帶產業,為最終用戶帶來網際網路多媒體新聞發布、在線直播、網路廣告、電子商務、視頻點播、遠程教育、遠程醫療、網路電臺、實時視頻會議等網際網路的信息服務,給運營商、內容提供商、服務提供商等整個寬帶產業價值鏈帶來豐厚的利潤。With the advance of semiconductor manufacturing, circuits with increasingly higher speed are being integrated at an increasingly higher density, which makes analysis and verification of power grid integrity more important. power grid integrity includes four issues, namely, ir drop analysis, ground bounce analysis, ldi / dt from the pin inductance and em analysis
隨著超大規模集成電路集成度和工作頻率的不斷提高,電源網格完整性分析變得越來越重要,一般有四個關鍵問題: ir電壓降分析、接地點電勢上升( groundbounce )分析、來自引腳電感的ldi / dt分析和電子遷移率em分析。The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research
調制類型的自動識別廣泛應用於民用通信與軍用通信,尤其是對于非合作性通信、通信對抗,比如:信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上,借鑒了已有的特徵提取方法,對相關調制類型特徵提取方法進行了優化,使用了一些有效的方法,如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析,本論文選擇了較適合的基於決策理論的識別演算法。Second part - the main contribution and research results of this paper are focused on as follows : ( 1 ) how to use the measurements of a dual frequency gps receiver to determine the ionospheric delay correction model for single frequency gps of a local range ; ( 2 ) how to separate the instrumental biases with the ionospheric delays in gps observation ; ( 3 ) how to establish a large range grid ionosphere model and use the gps data of chinese crust movement observation network to investigate the change law of ionospheric tec of china area ; ( 4 ) how to improve the effectiveness of correcting ionospheric delays for waas ' s users under adverse conditions. ( 5 ) how to establish the basic theory and the corresponding framework of monitoring the stochastic ionospheric disturbance using gps ( 6 ) how to improve the modelling ability of ionospheric delay according to its diurnal, seasonal, annual variations based on gps ; ( 7 ) how to meet the demand of correcting the ionospheric delay of high - precision orbit determination for low - earth satellite using a single frequency gps receiver 1 extracting ( local ) ionospheric information from gps data with high - precision the factors are systematically described and analyzed which limit the precision of using gps data to extract ionospheric delays
二、具體研究工作的系統報告,主要集中在以下幾方面:研究如何利用單臺雙頻gps接收機的觀測信息確定電離層延遲改正模型,為小范圍的單頻用戶服務;研究如何實時分離gps觀測中的儀器偏差與電離層延遲;研究如何建立較大區域的電離層格網模型,進而初步設想利用中國地殼運動觀測網路深入研究我國領域的電離層的電子濃度變化規律;研究單頻用戶在不利條件下,如何更好地利用電離層延遲改正信息;研究利用gps監測隨機電離層擾動的基本理論和框架方案;研究如何綜合顧及電離層的周日、季節和年變化,進一步提高利用gps模擬電離層延遲的能力;研究如何實現星載單頻gps低軌衛星的精密測軌中的電離層延遲改正要求。The query module is a retrieval system on internet, it adopts b / s mode of three - layer structure, and has been implemented by using the inner component ado and the third party component fileup of asp technology and sql server 7. 0. this module can support the transmission of multi - media file. the discussion module is a electronic white board which is based on network, it has been implemented by java language and java media framework ( one of java media apis )
本答疑係統由查詢和討論兩部分組成,查詢部分是一internet上的全文檢索系統,它採用三層結構的b / s模式,利用asp技術的內置組件ado 、第三方組件fileup和sqlserver7 . 0來實現,它能支持與問題相關的多媒體文件的上傳和下載,從而為查詢答疑提供了與問題相關場景(即音視頻信息)的支持;討論部分則是一網上實時交互系統,該系統是以java語言和javamediaapis ( applicationprograminterfaces應用程序介面)提供的jmf ( java多媒體框架)編程實現的網路電子白板,通過它能在ip網路上實現文字、圖形、圖象、音頻視頻信息的實時交流,使網上答疑變得直觀生動和高效The contents of this paper is a main part of the study - r & d of real time communication technology supported tablet in network video conference. it is a international cooperation fund project supported by science and technology office, yunnan province
本論文的研究是雲南省科技廳國際合作計劃的基金資助項目「新型人機介面?電子筆多功能網路視頻會議實時通信技術的研究開發」的一部分。Familiar with the application of equipment like spectrum, vna, etc
熟悉電子通信領域常用儀器(頻譜儀,矢量網路分析儀) 。People can get almost information through the internet. this gives rise to serious problems including wide spread copyright violation, illegal copying, easy forging etc. these problems are rooted from the intrinsic features of the digitally formatted information : ( 1 ) making copies is easy and inexpensive ; ( 2 ) each copy is exactly identical to the original ; and ( 3 ) distribution of the copies ( e. g. via network or floppy ) is easy and fast
多媒體數據的數字化為多媒體信息的存取提供了極大的方便,同時也極大地提高了信息表達的效率和準確性,如數字信號很容易進行編輯,可以方便、便宜、無失真地被復制,數字聲音、文本、圖像和視頻易於通過電子的(網路)或物理的( cd - rom )系統低價高效地迅速傳輸和分配等。It satisfy the consumer ' s mutlimedia application based on web like : video order prog, long - distance education electroncial commence etc. the essay comprises six parts, the first section introduces the utilization and development of the multi - media, regarding the current situatuion of our country ' s on - line education, points out the definite trend of the multi - media data transmission, the second part describes the basic protocol, technology and theory of multi - media data transmission, the third part gives brief introduction to the principles and compression methods of the dealing with multi - media data, the fourth section devises and realizes a complete set of stremline media server, the fifth part discusses qos under the condition of internet, the sixth part looks forward to the development of the streamline media technology
本文介紹了多媒體數據傳輸的基礎知識,結合科通教學平臺的開發,實現了局域網環境下的多媒體課件的傳輸,並對該系統的進一步改進提出架構流媒體服務器的方案,將用於滿足用戶需要更多基於網路的多媒體應用,如視頻點播、遠程教育、電子商務等。本論文分為七個部分。第一部分介紹了多媒體技術的應用與發展,針對我國網路教學的現狀,指出多媒體數據傳輸的必然趨勢。Engineering drawing has always been labeled as a practical subject. a combination of geometrical, building. mechanical and electrical drawing, it relates between theory and the picture of reality. engineering drawing will provide an accurate and complete ptcture for every object tn terms of shapes and sizes. usually, it is taught using the face - to - face teaching mode even in an odl environment. due to its nature, some students may find difficulty in imagining and interpreting the drawings. however, the availability of sophisticated technology provides the opportunity for the learning of engineering drawing to be enhanced via online. a web - based system for teaching and learning engineering drawing was developed based on a constructivism model. the web - based system is tailored for several topics of engineering drawing such as orthographic projection, sectional view, isometric and oblique drawing at the secondary level. the learning strategy consists of multiple phases beginning with introduction, concept learning, engineering drawing method, application and exercises. during introduction, students will be exposed to an overview of the topic followed by learning of specific concepts. the system provides a learning environment that allows engineering students to view objects from different angles, such as third angle projection and first angle projection as well as views of plans, side and front elevations. after learning about the concepts, students wilt be guided through the various steps in drawing methods for each topic via animations and simulations. learners are able to view any section repeatedly. examples of real application of engineering drawings were also given using graphic, animations and video. to evaluate students understanding, exercises were given at the end of each session
工程制圖一直被認為是一門實踐性學科,其整合了幾何學、建築、力學、電子制圖等,從而將理論與現實圖像聯系起來,工程制圖能為每個不同形狀、尺寸的物體提供精確的、完整的圖像.通常,即使在開放與遠程教育環境中,工程制圖的教學也是通過面對面的教學模式來進行的.由於其特殊性,一些學習者可能難以想象並解釋這些圖像.然而,尖端的技術使得可以通過在線的方式加強工程制圖的學習.研究者基於建構主義模式開發了一個面向工程制圖教學和學習的網路系統.該系統適用於幾種工程制圖,例如展開圖、刻面圖、等角圖和斜角圖.學習過程包括導論、概念學習、工程制圖方法,以及應用與練習等階段.在導論階段,系統為學習者提供了專題簡介,然後是概念學習階段.系統所提供的學習環境允許工程專業的學生從三維透視、一維透視、平面圖、側立面、正立面等不同角度來觀察物體.經過概念學習階段后,系統將引導學生通過動畫和模擬學習每個專題中制圖方法的不同步驟,學習者也能重復觀察任何剖面.另外,還通過圖像、動畫和視頻等方式展示真實的工程制圖應用案例.最後,為了評價學生的理解能力,在每部分內容後面都附有相關的練習The thesis mainly investigated the bati _ 4o _ 9 ( bt _ 4 ), which has the lowest dielectric loss in ba - ti system, and ( ba, sr ) tio _ 3, the a position substitute compound of batio _ 3. the dielectric properties of bt _ 4 / bst with different preparation way and different elements doping were investigated. a archimedes method, xrd, sem, impedance analyzer, network analyzer and hakki - coleman method were used to investigate the density, phase formation, microstructure, dielectric properties and doping mechanisms
本論文以在ba - ti系中具有最低介電損耗的bati _ 4o _ 9 ( bt _ 4 )高頻介質陶瓷和batio _ 3a位sr取代而得的( ba , sr ) tio _ 3 ( bst )高頻介質陶瓷作為研究對象,對不同粉體制備方法制備的bt _ 4 / bst高頻電介質材料進行不同元素的摻雜,運用阿基米德方法, x射線衍射分析儀,掃描電子顯微鏡和阻抗分析儀,網路分析儀, hakki - coleman法等方法手段和測試儀器測試燒成樣品的密度,相組成情況,微觀結構和介電性能,探討造成介電性能起伏的形成機理。In sixth part, according to the problems that consist in library network information reference, some relevant steps are given out. in seventh part, according to the above discussion, we design nine modes to realize library network information reference : co - existing mode of network information reference and traditional reference, cooperating network information reference mode between libraries, network information expert consult system mode, e
第七部分根據上述分析設想了圖書館實現網路信息咨詢的九種模式:傳統參考咨詢和網路信息咨詢兼顧模式、圖書館網路合作信息咨詢模式、網路信息專家咨詢系統模式、電子郵件信息咨詢模式、 homepage (圖書館信息咨詢網頁)模式、聯機(在線)信息咨詢模式、遠程視頻會議信息咨詢模式、虛擬實在信息咨詢模式和虛擬信息咨詢臺模式。Our netwok marketing project fully make use of the traditional and the new marketing concept and tool to spread on net, induced with “ topic + event + experience + sharing ”, we build a matrix type access mainly rely on blog, community, video, e - mail, e - zine, district portal, occupation portal and enterprise circle to form a integrate network marketing spreading and to enlarge our influence
提供的網路營銷解決方案充分利用傳統的及新興的營銷思想與工具,依託網際網路展開整合傳播,包括以「話題+事件+體驗+分享」為誘導,主要依託博客、社區、視頻、郵件、電子雜志、區域門戶、行業門戶、企業圈子構建的矩陣型通路,從而形成整合型的網路營銷傳播,實現影響力的大面積擴散與聚合效應。These criminals are taking advantage of increased business activities, rapid movements of money, telecommunications and computer links
日趨頻繁的商業活動,比前快速的資金流動電子通信和電腦網路等,都一一被這些犯罪分子巧加利用。分享友人