寬頻帶運用 的英文怎麼說

中文拼音 [kuānbīndàiyùnyòng]
寬頻帶運用 英文
broad band operation
  • 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...
  • 運 : Ⅰ動詞1 （物體位置不斷變化） move; revolve 2 （搬運; 運輸） carry; transport 3 （運用） use; wield...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 寬頻 : bisdn
  • 運用 : utilize; wield; apply; put to use
  1. Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results

    這種方法的積分方程的積分核里含有復雜的微積分運算，為了簡化計算，本文在推廣的海倫積分方程的基礎上，對方程進行了簡化，推導了nakano方程，並以平面阿基米德螺旋天線，平面等角螺旋天線，軸向模圓柱螺旋天線，具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例，用矩量法求解了天線上的電流分佈，研究了螺旋天線輻射的寬頻帶特性，所得的結果均與參考文獻吻合很好。
  2. 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。
  3. The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier

    本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。
  4. Many technologies of electrically small antennas and wide band antennas are discussed in theory, simulation and experiment. and some novel electrically small or wide band antennas are proposed. the loaded monopole is analyzed in depth integrating the genetic algorithm ( ga ) with the method of moments ( mom ) in order to increase the gain and decrease the vswr of antennas used at hf / vhf band

    在本論文的研究過程中，通過合理利用各種現有的天線寬帶化和小型化的理論成果、有效的綜合各種技術措施，運用矩量法和遺傳優化演算法等數值方法，深入研究了加載單極子天線問題，旨在全面提高高頻/甚高頻頻段內的天線增益和降低電壓駐波比，以獲得較高增益的、基本滿足駐波要求的小型超寬帶天線。
  5. In order to keep the signal transmission unfailing, bch error - correcting code is applied in the system. this kind of system does n ' t affect the application television broadcasting normally and does n ' t increase video signal bandwidth additionally. it optimizes the transmission circuit for control signals and solves the problem of time - delaying, thereby it promotes the transmission more efficiently and economically

    這種新型的應用電視在不影響電視正常播放和不增加電視傳輸帶寬的前提下，將控制信號搭載在視頻信號通道上運行，優化了控制信號傳輸線路，解決了時延問題，達到了利用電視信號逆程資源的目的，真正意義上實現了單纜傳輸監控系統，促進了監控系統的高效化和經濟化。
  6. A plug - in named macromedia flash player and a tool named swift3d are used to realize showing 3d animation which is made in 3dsmax and then is converted to swf format, a vector format that is easy to be transmitted by internet ; compress original 3d animation video ( avi format ) to rm stream media format

    使用macromediaflashplayer插件以及swift3d ，將3dsmax中製作的三維動畫轉換成易於網上傳輸的swf矢量形式；對原始三維視頻avi文件進行壓縮，成為rm流式格式；本文靈活運用這些方法，有效地解決了網上三維數據傳輸帶寬限制的問題。
  7. The pentagon buys as much as four - fifths of its bandwidth from commercial satellite operators, and the launch of a new generation of military - communications satellites is unlikely to satisfy the demand for capacity, given the need to pipe full - motion video back from uavs

    為此，美國五角大樓從商業衛星運營商購買了五分之四的帶寬，而且只要我們仍需要把完全連貫的視頻資料從無人機傳輸到地面，新一代的軍用通信衛星的發射也不太可能滿足對帶寬能力的需求。
  8. The standard is designed to give a new technical solution for a broad range of applications, such as very low bit rate conversational services and entertainment quality broadcast, interactive video - on - demand services etc. for the enhancement of the coding efficiencies, the new standard adopts new tools as following : multiple reference pictures, variable block - size with seven block sizes in motion prediction, quarter - pixel accuracy for motion vector, short word - length integer transform, context - adaptive entropy coding and loop filter deblocking

    H . 264 / avc標準支持從低帶寬、高誤碼率的無線移動視頻通信到高帶寬、低誤碼率的有線視頻廣播等多種應用，因此，日益受到業界的關注。為了實現更高的編碼效率， h . 264 / avc標準採用了很多新的編碼技術，如多參考幀預測、多尺寸編碼塊模式、 1 / 4像素精度運動矢量、整數變換量化、基於內容的熵編碼、新型幀內預測、去除方塊效應的濾波器等。
  9. The iboc technology, as proposed by the us - based ibiquity digital corporation, is also known as hd radio. it is designed to operate in the existing am and fm bands by attaching digital data to the sideband of analogue signals. the attached segment can either be a separate radio channel or other data

    Iboc是美國ibiquity digital corporation所推廣的制式，又命名為hd radio ，它被設計成可以在現行的am和fm頻帶內運行，在模擬訊號的邊旁加上數碼訊號，它可以是電臺聲音廣播或是其它的數據，但由於頻寬的限制，最大約是200kbps系統設計雖然善用有限的頻譜，但技術上較為覆雜，目前正發展第二代產品。
  10. In this study, a composite source model has been used to calculate the realistic strong ground motions in beijing area, caused by 1679 ms8. 0 earthquake in sanhe - pinggu

    摘要利用復合震源模型和人工合成地震圖的演算法，以1679年三河平谷m （下標s ） 8 . 0地震為例，計算了北京地區的寬頻帶強地面運動。
  11. The relationship between the body dynamic frequency bandwidth and the precision of the dynamic surveying with incomplete inertial sensors is clarified which can be a guideline for practical inertial system designs

    通過頻域分析，闡明了載體姿態運動頻帶寬度與動態測量精度的關系，對實際工程中慣性系統設計具有重要的指導作用。
  12. It has put forward a kind of method of self - adaptation based on motion characteristic to correcting error code. finally, based on the rtp protocol, real - time transmission of video and audio data is realized with software, and a bandwidth control algorithm based on rtp is introduced. the research results of this paper can be used in the long - distance education, video conference, videophone, video real - time control, and various kinds of communication systems

    接著討論了糾錯編碼，採用rs編碼作為前向糾錯碼，提出了一種基於運動特徵的自適應誤碼掩蓋方法，並採用rtp協議進行視音頻數據的實時傳輸及帶寬控制，本文的研究成果可以直接用於遠程教育、視頻會議、可視電話、視頻監控等各種通信系統，具有較大的研究價值及廣泛的實用價值。
  13. This paper studies the design methods and techniques of the broadband lna. using negative feedback techniques and lossy match method, a broadband lna acceptable for sdr is presented. the measured results showed that over 30mhz ~ 3000mhz, the lna achieved a maximum noise figure of 2. 0db, a power gain of 22db with gain flatness of less than 2. 0db

    本文最後對寬帶低噪聲放大器的設計方法進行了詳細探討，並運用負反饋技術和有損匹配的方法，研製了一種適合軟體無線電應用的寬帶低噪聲放大器，經測試，在30 3000mhz頻率范圍內，噪聲系數nf 2 . 0db ，增益g = 22db 2 . 0db 。
  14. The format allows streaming of audio ( on - line music, internet radio ) with low bandwidths. because of the low bandwidth priority, quality is often reduced

    該格式允許使用低帶寬音頻（在線音樂、網路廣播）流。因為它保證了低帶寬的運行狀態，所以播放的音頻、視頻質量不佳。
  15. Broad band operation

    寬頻帶運用
  16. These years, with the development of network technology, broadband access became necessary to applications in home network, and it is the one that carrier company wants to push on. currently, adsl, xdsl, fttb and cable modem still have some distance to people ’ s requirement, since they ca n ' t offer enough performance and quality to net - meeting, vod and voip. ngn ( next generation network ) is open network that could provide very new services, such as audio, video and data

    近年來，隨著網路技術的迅猛發展，寬帶接入逐漸成為很多家庭應用的必要設施之一，它也是電信運營商大力推廣的應用手段，當前廣泛使用的寬帶接入方案如adsl ，小區寬帶， xdsl和cablemodem與人們的需求還有一定差距，也不能為新興網路業務如視頻會議、 vod 、 voip提供足夠的帶寬以及相關業務的性能和質量保證。
  17. These years, as information technology take more and more important position in social life, broadband became necessary to home network access, and also it is the one that carrier operator wants to push on. currently, adsl, xdsl, fttb and cable modem still have some distance to people requirment, and they ca n ' t offer enough performance and quality to net - meeting, vod and voip

    隨著信息技術在社會生活中的地位越來越重要，寬帶接入已經逐漸成為很多家庭應用的必要設施之一，也是電信運營商大力推廣的應用手段，當前廣泛使用的寬帶接入方案如adsl ，小區寬帶， xdsl和cablemodem與人們的需求還有一定差距，也不能為新興網路業務如視頻會議、 vod 、 voip提供足夠的帶寬以及相關業務的性能和質量保證。
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