重復傳輸時間 的英文怎麼說

中文拼音 [zhòngfùzhuànshūshíjiān]
重復傳輸時間 英文
give-up interval
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 復 : Ⅰ形容詞1 （重復） repeated; double; duplicate 2 （繁復） complex; compound Ⅱ動詞1 （轉過去或轉過...
  • 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...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 重復 : 1 repeat; duplicate; reduplicate; iterate 2 repetition; reiteration; gemination; rerun; duplicati...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. To analyze some key technologies of optical network relative with rwa in detail, such as transmission, switching and internetworking ; to emphasize on the research of function, fabric and performance of optical cross - connection ; to carry out numerical simulations for crosstalk introduced by optical cross connect and to present measurements for suppressing it such as doubly filtering, fixing optimum decision threshold and appropriately choosing the number of multiplexed wavelengths ; 3. to research the fundamental principle and some problems relative with rwa, including the type of optical network, the type of traffic, the type of service, the survivability of optical network ; to classify and compare rwa algorithms and particularly research some dynamic rwa algorithms ; 4. to present reserved light - path and classify network resource such as used, unused and reserved status, to emulate establishment of all - optical connection in optical network through modified rwa algorithm and show effectively reducing setup time of all - optical connection utilizing reserved light - path ; to research rwa algorithms of multi - fiber network, to present new link weight functions dependent on node degree, unused fiber ( s ) per wavelength - layer and routing policies, to perform emulation of rwa based wavelength layer graph applying new link weight functions and show them make algorithms better performance and network lower blocking rate ; 5

    詳細分析了與rwa相關的光網路關鍵技術，包括傳輸、交換、組網等，重點研究了光交叉連接的功能和結構、性能，對其引入的串擾進行了詳細分析，選擇恰當的器件參數進行了數值模擬，並提出了抑制措施（如雙重濾波、優化判決門限、選擇恰當的復用波長數） ; 3 .研究了光網路的r認叭的基本原理、與r認叭的幾個相關問題（光網路類型、業務類型、流量類型、光網路生存性） 、 r認人演算法的分類和比較，具體研究了幾種動態r場人演算法; 4 .研究了以全光連接建立時間為優化目標的r認認演算法，提出預置光路的概念，對網路資源進行狀態分類（佔用、未佔用、預置） ，利用改進的r認叭演算法模擬，預置光路可為部分新到的連接請求快速建立連接，從而提高網路性能;研究了以多光纖網路連接阻塞率為優化目標的r認城演算法，提出了以節點度數、每個波長分層的空閑光纖數以及路由策略決定的幾種鏈路權重函數，利用基於波長分層圖模型的并行r場人演算法模擬，利用新的鏈路權重函數使得演算法具有更優的性能，使網路具有更低的連接阻塞率。
  2. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。
  3. And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion

    論文首先描述了數字電視地面廣播的需求條件，技術難點和目前存在的問題，並重點分析了dvb - t系統結構流程，核心技術及系統通道特性和參數，該系統採用了cofdm （編碼正交頻分多路復用） ，大量導頻信號插入和保護間隔技術等核心技術，使之能抵抗高電平（ 0db ） ，長延時的靜態和動態多徑失真，有利於數字和模擬電視的混合傳輸，它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。
  4. Beneficiary ? s certified copy of fax dispatched to the accountees within 72 hours after shipment advisingflight no., date ， quantity, weight and value of shipment

    經受益人鑒定過的傳真復印件，在出貨后的72小時之內發送給申請人，並通知其運輸航班號，時間，所出貨的數量，重量和價值
  5. X ) beneficiary ? s certified copy of fax dispatched to the accountees within 72 hours after shipment advisingflight no., date ， quantity, weight and value of shipment

    經受益人鑒定過的傳真復印件，在出貨后的72小時之內發送給申請人，並通知其運輸航班號，時間，所出貨的數量，重量和價值
  6. There ’ re some shortcomings in the past audio system. firstly, audio channel is connected with an audio cable ; secondly, the installation in multi - room or long distance environment is complex ; thirdly, extra hardware and cable is needed in the management and monitoring of the audio content ; lastly, the audio routing is manually operated or by expensive audio routers, also, the reconfiguration of the audio system is complicated and time - consuming. in comparison with the past audio system, audio and control data can coexist in cat - 5 cable using etheraudio router ; the devices can be separatedly monitored through the ethernet ; audio can be transmitted to single destination or different destination ; audio routing can be easily finished by modifying address

    傳統的音頻系統中，音頻軌道都要與一條音頻電纜相連;多房間、長距離安裝復雜;音頻內容的管理和監控都需要附加硬體設備和電纜;音頻路由需要人工接線或昂貴的音頻路由器，系統的重新配置也是復雜而耗時的過程。 etheraudio音頻路由器可以利用5類線同時傳輸音頻和控制數據;音頻設備可以通過以太網獨立監控;音頻數據可以傳輸到單個或多個目的地;音頻路由可以通過更改地址信息輕易地完成。
  7. The focus is about the char device driver design used in the dvb receiving card and the drive development process in user space ; analyzing the dvb receiving system working principle and process under linux and providing a method to load the linux dvb receive card device drive into the linux kernel ; analyzing and implementing the firmware design of saa7146 chipset working with linux kernel and working characteristic in vrious working mode ; analyzing and implementing the frontend drive programing of the digital tv receive system ; realized the qam demodulation and the mpeg stream filter, so that the output stream can be used to playing on pc better. and this article designs an event management mechanism based on the mhp, which improve the linux dvb software system

    重點研究了數字電視接收卡的字元設備驅動問題，闡述了用戶空間開發驅動程序的過程;分析了linux下數字電視接收系統的工作原理和驅動程序開發過程，給出了linuxdvbapi接收卡設備驅動程序加載到linux內核中的方法;研究實現了saa7146晶元配合linux內核共同工作的固件設計和不同工作模式下的工作特性;研究實現了dvb接收系統中前端驅動程序的編寫;設計實現了qam解調和mpeg流解復用，使輸出傳輸流較好地用於pc播放;同時，本文所設計的一種符合mhp規范的中間件事件管理機制，優化了linuxdvb軟體系統。
  8. This thesis discusses detailedly the flow process of ip multicast, error discovery method and error recovery method, and also proposes a new error control method to implement reliable multicast in computer supported cooperative design system : serial integrates with timer are used to discover error, arq mechanism based on nak feedback is modified to correct error, " sliding window " mechanism is imported to make up the drawbacks of traditional nak, and " slotting and damping " technique is used to resolve the question of " feedback implosion " which results from multicast reliability control

    詳細研究了ip多播傳輸的流程、數據傳輸的差錯檢測方法及差錯恢復方法，提出在協同設計系統中實現可靠多播的控制方法：利用序列號和計時器相結合的方法進行傳輸數據的差錯檢測，改進了基於nak反饋信息的arq重傳機制來實現差錯恢復，並引入了滑動窗口機制來解決傳統nak方法的不足，採用「時間分槽?抑制」技術來解決由於進行多播可靠控制而產生的「反饋內陷」問題。
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