數字鏈路 的英文怎麼說

中文拼音 [shǔzìliànlù]
數字鏈路 英文
digital link
  • 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 ...
  • 鏈 : Ⅰ名詞1. （鏈子） chain Ⅱ動詞（用鏈栓住） chain; enchain Ⅲ量詞（計量海洋上距離的長度單位） cable length
  • 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
  • 鏈路 : chain circuit; periodic line; link; link circuit; path of chain
  1. Microcircuits. digital microcircuits. fusible link prom memories

    微電路.數字微電路.可熔鏈路程序存儲器
  2. Isdn data link layer specification for frame mode bearer services

    綜合業務數字網幀模式承載業務數據鏈路層規范
  3. Estimation on bers of digital fiber - optic communication links using importance sampling

    用重要性抽樣方法估計數字光纖通信鏈路的誤碼率
  4. Hdsl : high - bit - rate digital subscriber link

    高比特數字用戶鏈路
  5. Connectors for electronic equipment - tests and measurements - part 14 - 6 : sealing tests - test 14f : interfacial sealing iec 60512 - 14 - 6 : 2006 ; german version en 60512 - 14 - 6 : 2006

    測量和控制數字數據通信工業控制系統用現場總線類型3 ： profibus規范第4部分：數據鏈路層協議規范
  6. Project 25 - link control word formats and messages - new technology standards project - digital radio technical standards

    項目25 .鏈路控制字碼格式和消息.新技術標準項目.數字無線電技術標準
  7. Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly

    但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。
  8. One of the most important events in the history of the development of tv technologies is the implementation of digital compression technology, which leads tv industry into a new rapidly developing stage. with satellite, cable and terrestrial transmission channels, dvb, of which the digital compression is the core technology, has such features as two - way channels, interactive functions, etc. in dvb system, the information of video, audio and text is digitalized and integrated to form a new kind of tv program. furthermore, through online digital information broadcasting, people can browse information of other programs while watching several programs just as they have done on the internet

    電視技術發展史上最重要的里程碑是數字壓縮技術的廣泛應用，它將電視事業帶入一個新的高速發展時期，以數字壓縮為核心技術的數字電視廣播通過衛星有線和地面傳輸具有多功能雙向傳輸交互性等特點，不僅將圖像聲音和文字等信息數字化，而且將有關信息相互鏈接並有機地結合在一起形成了新的節目形態，特別是其採用了數字信息在線廣播方式，觀眾在收看到多套節目的同時還可以像訪問網際網路那樣瀏覽其它節目信息。
  9. Electrical and mechanical interface characteristics and line control protocol using communication control characters for serial data link between a direct numerical control system and numerical control equipment employing asynchronous full duplex transmission

    電子和機械界面特性和在直接數字控制系統與用同步完全雙向傳輸的數字控制設備之間的系列數據鏈接的通信控制字元的線路控制協議
  10. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  11. The thesis is organized as below : in chapter 1, the background knowledge is given which is needed for study on bluetooth security mechanism and implementation. first bluetooth technology is overviewed including its develop history, radio interface, physical links, interference, network topology, core protocol, etc. next communication security is introduced according to the model of network security architecture from osi. finally some primary cryptographic techniques are discussed based on symmetric encryption, asymmetric encryption and advanced encryption standard published years ago

    本文研究了利用藍牙技術提供各種安全服務和實現的課題，並通過一些具體實現的實例進行闡述，具體安排如下：在第一部分，本文首先回顧了藍牙技術及發展情況，主要包括藍牙發展簡史、藍牙標準的射頻介面、物理鏈路、干擾情況、網路拓撲結構以及核心協議等；然後介紹了通信安全的基礎知識，討論了osi系統中的四層網路安全結構模型；最後給出了各種加密技術的基本理論，包括對稱加密體制如des和blowfish 、非對稱加密體制（ rsa公鑰演算法、數字簽名和身份證明等）以及新一代的高級加密標準（ advancedencryptionstandard ， aes ）等。
  12. Road vehicles - interchange of digital information on electrical connections between towing and towed vehicles - part 1 : physical layer and data - link layer

    道路車輛.牽引和被牽引車輛之間電氣連接的數字信息的交換.第1部分:物理層和數據鏈接層
  13. The design combines the advantages of hardware " s high - speed and software ' s low resources : 1 ) mc145572 is chosen to access the net providing 128kbit / s, 2b + d full dual channels ; 2 ) because of b channel " s large amount of user data and its high demands of real - time performance, the gsc hardware channel of intel 80c152 used as cup of the system is used to wrap / unwrap b channel " s sdlc, ensuring the system real - time working

    第一，選用motorola的mc145572晶元來實現終端在u節點的n ? isdn的物理接入。提供2b + d通道的全雙工的數字通信，速率達128kbps 。第二， b通道承載數據量大，實時性要求高，採用intel80c152作為cpu ，利用其gsc硬體通道實現b通道數據的sdlc （同步數據鏈路）裝幀與解幀，以確保通信的實時性。
  14. In order to expand the transceiver channel so as to solve the restrains of card slot number in data loop system, the quad el transceiver is designed, which enlarge the band breadth of data channel from 2mbps to 8mbps, and enables 120 clients simultaneously to communicate

    該四路e1收發器能夠提供四條e1鏈路，把帶寬從2mbps提高到8mbps ，能夠同時負載120個用戶的通信，解決了數字環路系統中卡槽數目限制的問題。
  15. 1 ) realization of software packet embedded in m - es and md - is respectively to accomplish main function of mdlp, including assignment of tei ( temporary equipment identifier ), establishment of multiple frame operation, framing, flow control and error - free transmission of packets, is detailed. 2 ) a test model is established to evaluate the robustness and stability of mdlp and verify the validity of software packets. 3 ) according to the design of radio modem construction used in m - es, the modules of interface between data terminal equipment and radio modem are achieved to enable transmission of short message and continuous pseudo - random bit stream via rs232 uart

    本文首先概述了蜂窩數字分組數據網的結構和空中協議，詳細分析了移動數據鏈路協議，並在此基礎上，重點敘述了以下方面的工作： 1 ）設計並完成了分別應用於m - es和md - is端無線控制器的兩套程序實現數據鏈路層的主要功能，包括分配臨時設備號、建立鏈路、組幀和面向連接的服務保證分組正確無誤地傳輸，並進行適當的流控； 2 ）建立測試模型測試移動數據鏈路協議的可靠性和穩定性，證明了程序包的效用； 3 ）根據cdpd系統無線數據機的軟硬體總體設計方案，完成了介面模塊，實現了rs232異步串口通信，使用戶可以根據需要發送短消息或連續的偽隨機比特流； 4 ）在tms320c54x的軟體、硬體模擬平臺上，建立了cdpd試驗模型，實現了cdpd系統的mdlp基本功能。
  16. Digital data communication for measurement and control - fieldbus for use in industrial control systems - part 4 : data link protocol specification

    測量和控制用數字數據通信.工業控制系統用現場總線.第4部分:數據鏈路協議規范
  17. Corrigendum 1 - digital data communications for measurement and control - fieldbus for use in industrial control systems - part 4 : data link protocol specification

    勘誤1 .測量和控制用數字數據通信.工業控制系統用現場總線.第4部分:數據鏈路協議規范
  18. Digital data communications for measurement and control - fieldbus for use in industrial control systems - data link service definition

    測量和控制用數字數據通信.工業控制系統用現場總線.數據鏈路服務定義
  19. Digital data communication for measurement and control - fieldbus for use in industrial control systems - part 3 : data link service definition

    測量和控制用數字數據通信.工業控制系統用現場總線.第3部分:數據鏈路服務定義
  20. Hypothetical reference digital link

    假設參考數字鏈路
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