itu-t 中文意思是什麼

itu-t 解釋
標準化組織
  • itu : ITU ＝International Telecommunication Union （聯合國）國際電信聯盟。
  • t : 中世紀羅馬數字的160。
  1. The hardware of the ip phone codec to be designed is based on the fixed point digital signal processor ( ti ' s tms320vc5410 ) while the compression and decompression core in the software of dsp is based on the itu - t vg. 729a. ip phone codec carryout the task of collecting / playing - back. coding / decoding of speech signal and communication with embedded cpu. etc

    該語音編解碼器的硬體基於tms320vc5410 ，編解碼演算法遵循itu - tg . 729a協議，能夠實現語音信號的採集/回放、編碼/解碼以及同嵌入式cpu通信等功能，在8kbit / s的碼率下能夠提供獲得良好的語音質量。
  2. H. 323 was developed by a team of computing, telephony and networking experts under the direction and auspices of the international telecommunications union ( itu - t ), a united nations organization, with the goal of specifying a universal real - time standard that would ensure interoperability of all packet - based networks and products

    H . 323協議由聯合國的itu - t領導下的一群計算、電信和網路方面的專家制定。 itu - t是旨在建立一個能夠融合所有網路實時傳送解決方案和產品的標準的組織。
  3. Research and development for itu - t h. 324 recommendation compliant videophone system

    324協議的桌面式可視電話系統
  4. Making use of the corba ' s excellent ability of the distributed object handling, fully considering the snmp ' s advantage of being widely supported, the thesis puts forward a kind of network management framework based on corba / snmp gateway. then, according to the framework, combining with itu - t " s recommendation of molding corba system by uml, the thesis models nms interfaces of requirement and analysis stage. the interface requirement is explained, and the static structures and dynamic behaviors are described with uml graphic syntax

    本文分析了傳統網管框架的不足，利用corba優秀的分散式對象處理能力，又充分考慮snmp支持廣泛的優點，提出一種基於corba snmp網關的網管系統框架；然後，結合itu - t使用uml建模corba系統的建議，對網管系統介面進行了需求和分析階段的建模，闡釋了系統的介面需求，並使用uml圖解語法對介面的靜態結構和動態行為進行描述。
  5. The full and accurate simulation under opnet proves that the algorithm can well support all kinds of t - cont which specified by itu - t standards, and can guarantee the qos requirement and the equitableness between multiple services which are multiplexed into the same t - cont at the same time

    模擬結果清晰的表明，這套演算法即能夠支持itu - t標準中規定的各種t - cont的傳輸特性，也能夠在多個業務復用到同一個t - cont的情況下保證各個業務之間的公平性和qos要求。
  6. This article is based on the intensive analysis of itu - t standards and then provides a suit of algorithms which focuses on the problem of upstream bandwidth allocation and utilization and support the bandwidth priority mechanism which specified by the itu - t standards, too

    本文基於對itu - t標準的詳細分析，結合對gpon特有的帶寬優先級和t - cont復用方式的理解，借鑒了一些基本的公平性分配機制，經過反復論證和試驗，提出一套gpon上行帶寬分配和利用演算法。
  7. Generally, the designed channel spacing of itu - t standard in wdm systems is from 0. 8nm to 1. 6nm, which is much larger than the spacing required by actual communication bandwidth. for example in lightwave transmission systems, a sghz channel occupies only 0. 04nm at the wavelength band of 1. 55 n m. thus, most of the bandwidth in the actual transmission systems may be wasted

    Itu - t標準中wdm系統設計的通道間距為0 . 8nm - 1 . 6nm ，這遠遠大於實際使用的通道帶寬，例如一個帶寬為5ghz的通道在1 . 55 m波段只佔據了約0 . 04nm的波長范圍，因而導致大部分的帶寬被浪費。
  8. 2 wiegand t, sullivan g j, luthra a. draft itu - t recommendation h. 264 and final draft international standard 14496 - 10 advanced video coding. joint video team of iso iec jtc1 sc29 wg11 and itu - t sg16 q. 6, doc. jvt - g050rl, geneva, switzerland, may 2003

    本文將avs1 - p2與h . 264 avc編碼性能進行比較，用大量的實驗數據驗證avs1 - p2視頻壓縮標準的整體性能，並定量分析了avs1 - p2在隔行掃描序列上與h . 264 avc的性能差距。
  9. Delta protocol analyzers for itu - t based teleconferencing protocols can be configured to support one or several video teleconferencing standards, which makes them indispensable for new product development, trouble - shooting connectivity problems, solving interoperability issues, and verifying compliance with the standards

    電話會議協議的協議分析工具可以配置為支持一個或多個視頻電話會議標準，使其成為新產品開發、連接故障排除、解決互操作性問題和驗證標準順從性所不可缺少的工具。
  10. Based on the realization of the encoder / decoders, this scheme aims at the highest rate downstream frame, and has realized the parallel fec circuit and scrambler complying with the protocols and maken a simulation. the fprme decoder is advanced in the world. the parallel fec circuit completely conforms to the itu - t protocols, and has important practical value

    在rs （ 255 ， 239 ）硬體編碼器/解碼器實現的基礎上，本文按照gpon協議要求，針對gpon中最高速率2 . 488gbps的下行幀，通過設計復雜的操作時序，實現了符合協議規定的32位并行fec編解碼和解擾碼電路，並作了模擬。
  11. Joint video team of iso iec jtc1 sc29 wg11 itu - t sg16 q. 6 doc., klagenfurt, austria, july 2002, jvt - d034. 12 final draft of information technology - advanced coding of audio and video - part 2 : video

    本文的基於上下文的變長編碼方法c2dvlc獲得了更高的編碼效率，相比于mpeg - 2的2d - vlc熵編碼器，在一些典型的高清標清測試序列上，編碼效率平均提高0 . 34db ，與h . 264的cavlc相比，編碼效率相當。
  12. H. 26l / h. 264 is a new video compression standard provided by itu - t and iso / iec, which faces to very low rate video communication. it uses a new dct transform method as 4 * 4 integer dct. it can reduce block effect, while it is clear and easy to realizen, has high precision, computes fast and costs less memory

    H . 26l / h . 264是itu - t與iso / iec聯合提出的一種較新的面向甚低碼率視頻通信應用的視頻圖像壓縮標準，採用了一些新的編碼技術，使用了新的dct變換方法: 4 4整型dct變換，該變換具有減小方塊效應，演算法明晰簡單、易於實現，運算結果精度高且不會溢出，運算速度快，佔用內存小等優點。
  13. Joint video team of iso iec mpeg and itu - t vceg, jvt - g050, march 2003

    3 . 5小節，給出了與cavlc相比的性能比較。
  14. Before the 1990s, the digital transmission equipment was based on the technical standards of plesiochronous digital hierarchy ( pdh ). in order to connect the switch to pdh transmission equipment, the switch side needs lots of terminal equipment of the primary rate, i. e., 2048 kbits ( 2m ) switching terminal circuits in compliance with itu - t standards ( e. g. s1240 s dtm trunk module and axe10 s etc module ) and ansi - standard - based 1544 kbits ones

    在90年代初期以前，數字傳輸設備是建立在pdh （ plesiochronousdigitalhierarchy ）技術標準上，為了連接交換機到pdh傳輸設備上，在交換機側需要大量的符合基群速率的終端設備，即符合itu - t標準的2048kbits （ 2m ）交換終端電路（如s1240的dtm中繼模塊， axe10的etc模塊）和符合ansi標準的1544kbits交換終端電路等。
  15. The technology of trellis coded modulation ( tcm ) and viterbi decoding which could achieve high transmitting rate at a low bit ' error rate are demonstrated in detail. and then the design and achievement of itu - t v. 32 modem that based on one - dimensional tcm are expatiated. the paper also discusses the multi - dimensional tcm the itu - t v. 34 modem that based on it and tcm ' s application in the carrier communication

    文中深入研究了可保證一定誤碼率的情況下能實現較高傳輸速率的網格編碼調制（ tcm ）技術和維特比譯碼技術，闡述了基於單維網格編碼調制的itu - tv . 32modem的設計和實現，討論了多維網格編碼調制技術和基於其的itu - tv . 34modem ，並對網格編碼調制在載波通信中的應用作了簡單介紹。
  16. In proc. ieee wireless communications and networking conference wcnc, new orleans, louisiana, usa, sept. 1999, pp. 329 - 333. 39 itu - t recommendation h. 263 annex h. video coding for low bit rate communication - annex h : forward error correction for coded video signal

    在對這些高層編碼工具的介紹中，部分或全部給出了各個工具的設計思想和方法作用發展歷史，從而闡明為什麼在avs - m的標準制定過程選擇了該設計。
  17. Integrated services digital network isdn - signalling system no. 7 ; isdn user part isup version 4 for the international interface - part 7 : terminal portability supplementary service itu - t recommendation q. 733, clause 4 1993, modifi

    本標準適用於gb 12268中的爆炸品壓縮氣體和液化氣體易燃固體自燃物品遇濕易燃物品氧化劑和有機過氧化物不含軍工危險物。
  18. In this paper, the theory and implementing method of video encoder based on the itu - t h. 263 video coding for low bit rate communication standard are studied deeply in order to satisfy the demand of narrow - band video communication

    為了在窄帶通道上實現視頻通信，本文對基於itu - t的低比特率視頻通信編碼標準h 263的視頻編碼器的原理和實現方法作了深入的研究。
  19. The testing results show that the busyconnecting system is an optimized design with perfect function and flexible network application. and all technique performance index is accord with itu - t recommendation and the country standard

    功能測試結果顯示，來話遇忙轉移系統功能完善，組網靈活，其技術性能指標均達到itu - t建議和國家標準的要求。
  20. In jaint video team of iso iec mpeg itu - t vceg, jvt - f017 6th meeting, awaji, december 2002. 6 haiyan li, mei wen, nan wu et al. accelerated motion estimation of h. 264 on imagine stream processor

    相對應的，數據相關的流，每個流元素的處理不盡相同，非勻速通過計算核心，我們將這樣的流定義為不規則流。
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