數字傳輸通路 的英文怎麼說

中文拼音 [shǔzìzhuànshūtōnglù]
數字傳輸通路 英文
digital transmission path
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 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...
  • 通 : 通量詞（用於動作）
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  • 通路 : thoroughfare; highway; highroad; route; viae; lead; outlet; approach; passage; gangway; access; c...
  1. Fieldbus is a kind of communication network which is a whole digitial communication multi _ embranchment data bus between intelligential field device and auto _ system. control system based on pcs ( fieldbus control system ) is a new kind of system which connect field control unit, field monitor unit, operation unit, communication interface uint with databus. lt integrates computer technology, communication technology and process cnotrol technology to adjust to demand of high standard productive control and enterprise management. lt developments and follows the advantage of traditional instrument control system and computer central control system and make up for their disadvantage so that it is applied in different industrial cnotrol area

    現場總線是連接智能現場設備和自動化系統的數字式、雙向傳輸、多分支的通信網路。它是一種能支持雙向、多節點、總線式的全數字通信網路。基於現場總線技術的控制系統是一種新型的控制系統，它採用總線方式將現場控制單元、現場監視單元、操作站、通信介面單元連接起來，綜合了計算機技術、通信技術和過程式控制制技術，以適應現代高水平生產控制與企業管理的需要。
  2. The design scheme how generally - used analog interphone transport system upgrades to networked digital system over ethernet is introduced

    摘要介紹了目前在監控系統中普遍使用的一種模擬對講機，通過以太網傳輸升級成網路數字系統的設計方案。
  3. Delay line oscillator is composed of broadband amprifer adjustable attenuator and saw sensor device. after output signal of delay line oscillator is smoothed, it mixes with 109mhz local oscillation signal. its differential frequency signal is smoothed by low - pass filter trimmed by shaping circuit and processed by digital processing circuit

    延遲線振蕩器由寬帶放大器、可調衰減器和聲表面波質量傳感器件構成。延遲線振蕩器輸出信號經濾波后與109mhz的本機晶體振蕩器輸出信號相混頻，通過低通濾波取其差頻，並經整形後由數字信號處理電路處理。
  4. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式（ 16qam和4 - qpsk ）進行了模擬工作並給出了模擬結果，同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試；然後在基於軟體無線電思想的數字處理平臺（該數字處理平臺實現了中頻數字化）上用dsp軟體完成了載波的相位跟蹤。
  5. As to the abuses of that analog circuits mix digital ones, special components mix general ones, and overfull append devices in domestic and overseas capsule endoscope electric systems, we introduce a full digital, high - integration and simple - configuration idea for the design of capsule endoscope electric system, then designed and made camera module, wireless transceiver module and usb data transfer module

    針對目前國內外的膠囊內窺鏡電子系統裝置中，數字電路與模擬電路並存、專用器件與通用器件並存、附加設備過多的弊端，本文提出了數字化、集成化、精簡化的膠囊內窺鏡電子系統設計思路，並分別設計製作了膠囊內窺鏡系統的攝像模塊、無線收發模塊和usb數據傳輸模塊。
  6. Dvb / mpeg - 2 transport stream multiplexer / demultiplex takes an important role in digital video broadcasting system. it can combine several transport streams from source encoder into a single transport stream to transport channel, or demultiplex trasnsport stream into one program sorce to source decoder. its performance has a great influence on the program transmission ability of hdtv system and the decoding quality of decoder in hdtv receiver. mpeg - 2 system multiplexer signalized video, audio, host data and so on to fixed length packet type for making transport stream

    Dvb mpeg - 2傳送流復用解復用是數字電視廣播系統中的重要組成部分之一，它將從信源編碼器輸出的多路節目源復用成一路傳輸流送入傳輸通道，或者從通道中包含多路節目源的一路傳輸流中解復用出一路節目送到解碼器解碼。
  7. In the following chapters, a 16 - channel experimental phased array ultrasonic testing system is thoroughly explained, including digital beam forming, low noise programmable amplification of received ultrasound signal, multi - channel hi - speed hi - precision data acquisition, hi - speed real - time processing of multi - channel ultrasound signal, and hi - speed data transfer based on pci bus. in addition, the frame of software system is built

    本文詳細闡述了作者所獨立研製的16通道相控陣超聲檢測實驗系統，包括數字化超聲發射/接收波束形成、超聲信號的低噪聲程式控制放大、多通道高速高精度數據採集、多通道超聲信號高速實時處理、基於pci總線的高速數據傳輸等全部電路模塊的結構及工作原理，並說明了所編寫的底層軟體系統的框架。
  8. Digita1 data network ( ddn ) is a digita1 transmitting network that transmi ts data by digital channe1s

    數字數據網ddn （ digitaldatanetwork ）是利用數字通道傳輸數據信號的數據傳輸網路。
  9. According to the mil - std - 188 - 220b protocol of american army, data packets can be relayed and forwarded automatically by nodes in network. the network can detect the change of topology in internal system and assure the information to be sent to the destination node in connective network. furthermore, it comprises of the radio data transmitting network for some equipments such as tactical data terminal and computer so on

    本質上，它屬于無中心的自組織分組無線網，按照美軍戰術網際網路「數字消息傳輸設備子系統互操作標準」 （ mil - std - 188 - 220b協議） ，通過節點對數據分組的自動中繼轉發，使網路能夠自動探測到系統內部拓撲結構發生的變化，保證信息能達到網路中所有連通的節點，為戰術數據終端和計算機等設備提供無線數據傳輸網路。
  10. Socket function mainly realizes setting up and initializing service unit socket, initializing service unit and service unit serial and so on. bind funcion primarily binds local address and port for the socket. listen function is to evaluate the max length of server ’ s listening queue. connect function and accept function set aside rate ahead, infrom user ’ s request of establishing virtual circuit to suna, cooperate with suna to establish the connection between client and server, return the result. we make use of three handshake with data protocol and virtual circuit mode, in this way, when we translate data, we can look up communication course according to virtual circuit number, at the same time, there aren ’ t source ip address and port, end ip address and port in the head of data package, the speed of translating data advances in a certain extent. send function and recv function is to send data collaborating with suna, and copy data from the receiving queue of socket to user ’ s buffer. close function cooperate

    Socket （ ）函數實現創建、初始化服務元套接字，初始化服務元及服務元序列等。 bind （ ）函數為套接字綁定本地地址和埠號。 connect （ ）和accept （ ）函數主要是根據用戶要求預留帶寬，將用戶的建立虛電路請求轉達給服務元網路體系，協作服務元網路體系採用捎帶數據的三次握手協議建立虛電路，並告訴用戶處理結果，一方面，捎帶數據的三次握手協議在一定程度上可提高數據傳輸速度;另一方面，採用虛電路方式，使得數據通信可直接根據虛電路號查找相應的通信進程，而且數據包的包頭中省去了源ip地址、埠號和目的ip地址、埠號，提高了數據傳輸速率。
  11. On the other hand, the opening and insecure internet brings up a new task to the rfmdms based on the internet that how to ensure the security of data transporting in many application fields such as the military equipments " maintenance and etc. the security of data transporting on the internet is mainly made up of three aspects : identity authentication, encrypted data transporting and digital signature

    網路數據傳輸安全主要解決在網路環境下用戶之間身份驗證、數據加密傳輸以及實現數字簽名三個方面問題：用戶身份驗證保證了通信的源點和目的點的正確性；數據加密傳輸保證了數據在網路的中間節點不會泄露通信秘密；數字簽名可以保證發送信息的一方不能對自己發送過的信息進行否認。
  12. Highway construction, railway construction, highway maintenance equipment and new materials for road construction ; communication broad band and narrowband, construction of multi - function information network and local area network, digital mobile communication products, optic cable transmission system, access network system and equipment

    公路建設，鐵路建設，公路養護成套設備及路用新材料;通信寬窄帶、多功能信息網及局域網路建設，數字移動通信產品、光纜通信傳輸系統、接入網系統及設備等。
  13. Digital transmission path

    數字傳輸通路
  14. This thesis begins with hfc network theory and docsis, analyses modulation / demodulation process of data communication in hfc. then, several theories are analysed including qam ( quadrature amplitude modulation ), nyquist root square filter, fec ( forward error correction ), map ( bandwidth allocation map ). and digital signal transmission involved the other important international standard ? itu - t j. 83 annex a / b, is discussed

    本文從hfc網路理論和docsis協議入手，分析了hfc數據通信的調制解調過程，對qam調制、奈奎斯特均方根濾波器、前向糾錯（ forwarderrorcorrection ，簡稱fec ） 、 map通信等進行了闡述；還從中探討了電纜數據機需要用到的另一個國際標準ituj . 83annexa / b所設計的mpeg信號的數字傳輸。
  15. Based on an analysis on the present situation and development of three kinds of signal systems ( the point system based on interrogator responsor, the quasi - moving block system based on digital track circuit and the moving block system based on wireless data transmission ) in urban rail transit, some suggestions on the localization of signal system of urban rail transit are put forward

    摘要在分析三種城市軌道交通信號系統制式（基於查詢應答器的點式系統、基於數字軌道電路的?移動閉塞和基於無線數據傳輸的移動閉塞）的現狀和發展基礎上，對實現我國城市軌道交通信號系統國產化提出建議。
  16. The new generation of digital anti - interference transceiver mainly applies to the following digital businesses : intermediate - frequency ( if ) digitize, frequency - hopped communication, data transmission, link quality analysis ( lqa ), automatic link establishment ( ale ) and high - frequency adaptation etc. it is compatible with the former transceiver

    新一代的數字化抗干擾電臺在數字化業務上主要有：中頻（ if ）數字化、跳頻通信、數據傳輸、鏈路質量分析（ lqa ） 、自動建鏈、高頻自適應等，並與以往電臺相兼容。
  17. There has been established an all enveloping transmission network of broad - band information with big - capacity optic fiber, digital micro - wave, cable and broadcast tv. long distance telephone calls can reach 1, 800 cities in the country and practically all places in the world

    全市已形成大容量光纖、數字微波、有線和無線全面覆蓋的寬帶信息通訊立體傳輸網路，長途電話可直撥世界各地和國內1800多個城市。
  18. In communications, to transmit data that arrive at the receiving end in an unintelligible jumble of characters, usually because of equipment malfunction or line noise

    在通信技術中，通常由於設備故障或線路噪聲，使在接收端得到的數據成為無法理解的一堆字元的數據傳輸失誤。
  19. In the paper, some key techniques which are dealt with in the system implement have been discussed, such as the principle of video encoding and compressing, mpeg compressing standard, the principle of streaming media, realtime transport protocol ( rtf ), real - time transport control protocol ( rtcp ), real time streaming protocol ( rtsp ), the network architecture ; the technique of ethernet and the programming technique of realization of network communication, etc. based on the above key techniques, a simple, valid and inexpensive solution to rebuild existent traditional surveillance system is supplied in this dissertation

    本文分析了現有模擬監控系統的優缺點，重點討論了視頻編碼壓縮原理， mpeg壓縮標準，流媒體技術原理，實時傳輸協議rtp ，實時傳輸控制協議rtcp ，實時流協議rtsp ，網路體系結構，以太網技術和網路通信編程技術等系統實現過程中所涉及的關鍵技術。基於上述關鍵技術，本文提出了傳統視頻監控系統的數字化和網路化改造的一種簡單可行且成本低廉的解決方案。
  20. Total length of optical cable had exceeded 6, 000 kilometers ; the pdh equipment had gradually been replaced by new sdh digital transmission equipment ; and there were nearly 100, 000 2 mbits transmission circuits in operation throughout the network

    光纜總長度超過6000km ，發展初期的pdh設備已逐漸被新的數字傳輸設備sdh取代，全網實際開通2mbits傳輸電路數量接近100000條。
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