視在傳輸帶寬 的英文怎麼說

中文拼音 [shìzàizhuànshūdàikuān]
視在傳輸帶寬 英文
apparent transmitted bandwidth
  • 視 : Ⅰ動詞1. （看） look at 2. （看待） regard; look upon 3. （考察） inspect; watch Ⅱ名詞（姓氏） a surname
  • 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
  • 輸 : Ⅰ動詞1 （運輸; 運送） transport; convey 2 [書面語] （捐獻） contribute money; donate 3 （失敗） l...
  1. We study the cost of metro wdm in two aspects in chapter 2. for the aspect of components, a bidirectional optical add - drop multiplexer ( boadm ) using fiber gratings and circulators is designed, and is cheaper, simple and appropriate compenent for single - fiber bidirectional ring networks ( sfbrn ). for the aspect of network, after study the traffic - grooming problem and the cost of wdm ring networks, a layered network with a multi - hubs is presented to reduce the total number of the network ports

    在第三章，我們搭建了一個可以實現多業務單纖雙向傳送的sdh wdm網路平臺，以單根50km光纖作為物理媒質，以mux demux的為單纖雙向復用器件，以sdh wdm為傳輸手段，採用mstp技術，通過接入vlan模塊建成一個單纖雙向傳輸的局域網，並以此為基礎通過接入圖像編解碼器實現單纖雙向視頻傳輸，為城域寬帶接入網的多業務實現提供了範例。
  2. In the past few years, there has been significant interest in digital video applications like video conferencing and video e - mailing over internet, video telephony over public switched telephone networks ( pstn ) and wireless networks, etc. by removing spatio - temporal redundancies existing in adjacent frames, motion estimation can reduce the coding bit - rate significantly

    低速率視頻編碼技術已在許多領域得到了應用，如在pstn （公共電話網） 、無線網、 n - isdn （窄帶綜合業務數字網） 、 b - isdn （寬帶綜合業務數字網）上傳輸視頻會議、可視電話和無線手持終端等。
  3. Though wide - band has been used widely, it ' s not wide enough to watch high - quality real - time video. futhermore, wiless communicaton has become a hot technology, it has limited band and unstable communication channel which result in high percentage of errorness in this situation, if people want to watch realtime video, it has high demand that video producer compress the video as small as possible when quality is good enough and receiver have ability of error resilience

    另外，無線通信已經成為當前it領域的一個大熱點，對無線通信來說，帶寬就更加有限，並且傳輸線路不穩定，錯誤率高，在這種情況下，如果想通過無線網路在線觀看視頻，必然需要視頻發送端在保證質量的情況下對視頻進行盡可能的壓縮，同時提供強大的糾錯和抗錯能力。
  4. In packet based wireless video communications, when best band distribution, not only source distortion should be considered, but also channel distortion caused by channel errors. the existing macroblock - layer rate control schemes calculates quantization parameters of all macroblocks ( mb ) in a frame in a raster scan order, and then encodes the mbs in the same order. actually, the quantization distortion is heavily dependent upon the coding order of mbs

    在基於包的無線視頻傳輸中，最佳帶寬分配時，不僅要考慮信源編碼失真，也要考慮由於通道差錯引起的通道失真；已有的宏塊層碼率控制演算法以矩陣掃描的順序計算一幀中所有宏塊的量化參數，事實上量化失真與宏塊的編碼順序有很大關系，改變宏塊的編碼順序，使復雜的宏塊分配到更多的比特數，顯然能大大提高編碼效率。
  5. Because mpeg video need more storage space ( though achievements in compression algorithms have decrease it to a reasonable degree ), high transmission bandwidth, low transmission delay and delay jitter ( especially to real - time video ). how to guarantee video transmission qos ( quality of service )

    如何在寬帶ip和atm網路上有效地傳輸mpeg視頻，才能有效地保證視頻傳輸的服務質量參數qos （如延遲、延遲變化等） ，以及用戶終端表示的表現質量參數qop ，一直是近年來學術界研究的熱點。
  6. The system is developed by ourselves on the basis of the project which is titled. multimedia broad bandwidth network engineering and been responsible by the author of this thesis. the hfc network transmission based techniques of internet dual access, user set - top - box access, stock broadcasting, standard video broadcasting, distant education, etc. are addressed. this system can provide information highway to telecommunication and tv broadcasting to run multimedia services and be suitable for the status of our nation and the economic burden of our public

    本論文以作者負責的項目「山東勝利油田多媒體寬帶網路工程」為背景，闡述了本單位自主開發的「基於hfc網路多媒體寬帶傳輸系統」的原理、功能和技術特點，論述了基於hfc傳輸網路下的： internet雙向接入技術和用戶端機頂盒接入技術及股票發送、準視頻廣播、遠程教育等高速數據廣播技術在hfc網路工程中的實現，說明了該系統能夠為電信和廣電全面開展多媒體增值業務提供一套適合我國國情、滿足我國公眾經濟承受能力的信息高速公路完整解決方案。
  7. 3, high and clear degree television : because of the problem that the distinguishing the rate of high and clear degree television is very high, and bring is a program for needing to deliver to take the breadth very high, must use the high compression ratio may just deliver the high and clear degree television. on this point, the current there is mpeg2 technique and can be competent

    3高清晰度電視：由於高清晰度電視的解析度很高，帶來的問題是所需的節目傳輸帶寬很高，必須使用高壓縮比才有可能傳送高清晰度電視。在這一點上，目前只有mpeg2技術能夠勝任。
  8. It supports 32mbps of data rate in an 8mhz television channel, and provides functions of assigning band via channel and sub - channel, adjusting program transfer rate by software

    在一個8mhz的電視頻道內支持32mbps的數據傳輸速率，同時在硬體上通過頻道和子頻道進行帶寬分配、軟體上可以實現按節目進行速率調整。
  9. The characteristic and key technologies of the system are as follows : ( 1 ) in realizing the live broadcast of audio and video, the problem of immense multimedia data and low networks bandwidth utilization ratio is solved by using mpeg - 4 as format of audio and video data. audio and video data are collected by video card cv500 which developed by beijing sum tone company ; meanwhile, the contradictory between the delay of networks transmitting and the quality of the image is well solved by setting a " bi - buffer area "

    系統實現中解決的關鍵問題和特色主要有以下幾個方面： （ 1 ）在視音頻直播功能的實現中，通過使用北京算通公司的cv500視頻採集卡和cv500sdk進行視音頻數據採集，並採用當今最新的圖像和語音編碼壓縮標準mpeg - 4作為視音頻數據的採集格式，既保證了圖像的質量，又大大縮減了視音頻所佔的帶寬，從而解決了多媒體數據量大、網路帶寬利用率低的問題；同時，通過設置環形緩沖區的辦法來調和網路傳輸延時與圖像質量之間的矛盾，取得了較好的效果。
  10. 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。
  11. Dynamic synchronous transfer mode ( dtm ) is a new broadband network technology that helps enterprise networks efficiently carry voice, data and streaming video on a single, integrated network

    動態同步傳輸模式（ dtm ）是一項寬帶網路新技術，它有助於企業網路有效地在單一的集成網上傳送聲音、數據和流式視頻信號。
  12. How to present them to end - users in order to guarantee qop ( quality of presentation ) ? we pay more attention to mpeg video storage, transmission control and presentation in ip and atm network in this thesis

    因此，在本論文中，作者對寬帶ip和atm網路中的mpeg視頻存儲、傳輸控制及終端表示進行了較為深入的研究和探索，並取得了如下成果。
  13. As a high band - efficiency digital modulation scheme, dvbc ( digital video broadcasting of cable ) qam ( quadrature amplitude modulation ) modulator is widely adopted in the wide - band communication area, such as hdtv broadcasting, cable modem, microwave communication, satellite communication and so on

    正交幅度調制器（ qammodulator ）作為一種高頻譜利用率的數字調制方式，在高清晰度電視（ hdtv ）廣播、 cablemodem 、固定寬帶無線接入、衛星通信、數字微波傳輸等寬帶通信領域得到了廣泛應用。
  14. This method is especially suitable for small mobile devices such as handheld pcs, palm - size pcs and mobile phones that possess small display screens and light computational power, and work in low bandwidth wireless networks. the system rtbvideo based on the technique mentioned above typically provides qcif - size video with a frame rate of 5 - 15 fps for a 9. 6 kbps bandwidth in the internet

    在上述技術的基礎上開發的基於internet網際網路的實時視頻傳輸系統rtbvideo ，能夠提供格式為qcif （ 176 144 ）的視頻，人體輪廓清晰，畫面穩定流暢，且在9 . 6kbps帶寬下能達到每秒5 - 15幀。
  15. For resource limited, the motion - video data stream with high bit - rate value used in mpeg - 2 standard can not forward exactly by media. or for the sake of resource more efficiently utilized, more multi - pass program streams can be forwarded in certain bandwidth

    Mpeg - 2的視頻數據流在帶寬資源不夠條件下，常常無法正常地傳輸，或者在一定的帶寬資源條件下，如何傳輸更多的節目流，更有效地利用帶寬資源？
  16. In order to improve measurement accuracy, methods of high resolution, high frame rate and much vision pot are used in image capturing. it brings issue of high image transmitting bandwidth and big storage space. the hardware & software architecture of image capturing system encounter strict challenge against image data transmission and processing in real time

    在動態視覺測量中，為了提高測量精度，通常採用高解析度、高幀頻的相機在多視點進行採集，這樣就帶來了圖像數據傳輸的帶寬高，圖像數據存儲容量大的問題，這對圖像採集系統的硬體和軟體結構設計，特別是在實時性傳輸和提高圖像處理速度方面都提出了較高的要求。
  17. Future wireless applications, such as video cellular telephony, wireless internet access and wireless lans, have open a new field for wireless multimedia communication - image communication, which push a growing demand for fast, economic, low - energy mobile multimedia communication. however, there are still several bottlenecks - bandwidth, low - delay, power and noise etc, need to be solved

    然而由於無線視頻通信存在許多瓶頸與協議問題：包括帶寬要求、實時性要求、功率限制和通道噪聲等，面向無線的視頻編碼與傳輸技術已成為當今信息科學與技術的前沿課題。
  18. Secondly, the author analyzes adaptive encoding control algorithm, pack algorithm and feedback congestion control algorithm suited to mpeg - 4 video. taking into account the matching transport rate and bandwidth, the author gives an improvement and optimization of the feedback congestion control algorithm. finally, a feasible project of network visual telephone is designed

    其次，在視頻數據的傳輸碼率與網路帶寬的適應性方面，作者通過分析適用於mpeg - 4視頻適應性編碼的控制演算法、視頻數據打包演算法和網路擁塞控制演算法，提出了網路擁塞反饋控制演算法的改進和優化思想。
  19. In the course of making multimedia courseware, the prominent issue is how to resolve the contradiction between vision effect and transmission bandwidth

    在多媒體課件的研究過程中，突出的問題就是如何解決課件的視覺效果和傳輸帶寬之間的矛盾。
  20. In this paper, the streaming media technology applied to network video monitor system are researched on the basis of video streaming. the emphases are put on system design, video captures and play, and the design of network transmission module and relevant software development method. in fact, uality of service of the network has unstable characteristics, we have analyzed qos guarantee strategy in video streaming transmission on network, and presents a integrated qos guarantee scheme which based on data encapsulation, buffer storage technology and congestion control on network. this scheme do its best to avoid the big delay or congestion on network based on make full use of network bandwidth, which can guarantee the best qos of the video transmission

    重點討論了系統架構、視頻捕獲和播放、網路傳輸模塊設計以及相關軟體開發方法。同時，針對實際網路中存在的服務不穩定性特點，分析了視頻流在網路傳輸過程中的qos保證技術，並在系統中提出了基於數據封裝、緩存技術以及網路擁塞控制機制的綜合qos解決方案。該方案使系統在充分利用網路帶寬的情況下最大程度上避免出現大的延遲或擁塞，保證了視頻傳輸的最佳服務質量。
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