數字輸出標準 的英文怎麼說

中文拼音 [shǔzìshūchūbiāozhǔn]
數字輸出標準 英文
digital output standard
  • 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 ...
  • 輸 : Ⅰ動詞1 （運輸; 運送） transport; convey 2 [書面語] （捐獻） contribute money; donate 3 （失敗） l...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 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
  • 輸出 : 1 （從內部送到外部） export 2 [電學] output; outcome; outlet; out fan; fanout; 輸出變壓器 output ...
  • 標準 : （衡量事物的準則; 榜樣; 規范） standard; criterion; benchmark; pip; rule; ètalon （衡器）; merits
  1. In the first chapter, the history and the present situation of the dtv system is presented. the present dtv transmission system standards are given first, after that the dtv transmission draft we proposed is introduced compactly

    第一章，在對數字電視相關的背景知識的講述基礎上，首先列舉了當前已有的數字電視傳輸標準及其相關主要參數，並對我們提出的數字電視廣播系統傳輸方案進行了簡要介紹。
  2. This master ’ s degree thesis firstly introduces and discusses the principle of ofdm and the merged blue print for digital terrestrial television broadcasting in china, then proposes a scheme for the test platform of narrowband ldpc decoding efficiency based on fpga. this scheme includes techniques such as time - domain synchronization using pn and power estimation using pilots

    本論文首先介紹並討論了數字電視傳輸標準tds - ofdm的實現原理，對其中的一些關鍵問題做了詳細的分析，在此基礎上提出了一種基於fpga的窄帶ldpc解碼-誤碼測試平臺設計方案，即利用時域pn頭同步及頻域導頻進行功率估計的fpga設計。
  3. As the step of the color tv ( the second generation ) to the digital tv ( the third generation ) is larger and larger, the research of digital television terrestrial broadcasting ( dttb ) become more and more important in china, we are concentrating on the standard of dttb which is suit for our country after describing and analyzing the technical stipulation and speciality of dttb, this paper compares atsc 8 - vsb with dvb - t cofdm and isdb - t bst - ofdmo the emphasis of this article lies in the technical solution about transferring system, channel coding is important component of dttb, which can resist from the bad circumstances o because of lots of varieties and different performance, channel coding become one of the emphasis of the research work this paper analyzes and researches the theory and performance of the different channel coding particularly, points out an effective theoretic analysis method and computer demo of performance comparison a theoretical method for estimating the performance of concatenated codes is proposed in this paperc this is achieved by combining the performance of single level coding rayleigh fading channel and the character of channel modulation it may be useful to research and development of the future digital television terrestrial broadcasting standard of our country

    通道糾錯編碼是數字電視地面廣播傳輸系統的重要組成部分，是抵禦地面惡劣環境的有效手段。由於通道編碼的種類繁多，性能各異，因此是目前研究工作的重點之一。本文詳細分析和研究了幾種通道糾錯編碼的原理和性能，並針對外碼內碼級聯糾錯結合地面通道瑞利衰落提出了一種有效的理論分析方法和性能的計算機比較演示方案，總結了不同級聯方案的性能特點，對於我國目前的數字電視地面廣播標準的研究和通道級聯糾錯方案的確立及其參數選擇具有一定的參考價值。
  4. The main research aspects are as follows : the method of ac transport losses measurement in ac applied magnetic field was investigated. upon the analysis of ac loss measurement, a method to measure ac transport losses in ac applied field was proposed by use of double " 8 " shape coils. a programme controlled system was set up to measure ac losses of hts tapes and coils, which can ensure the experiment data needed by theoretical analysis and verification

    主要包括：在實驗方面，探討了交流背景磁場下高溫超導帶材的交流傳輸損耗的測量問題，通過對交流損耗測量的理論分析，提出了採用雙「 8 」字形電勢引線測量交流背景磁場下高溫超導帶材交流傳輸損耗的方法；建立了超導帶材短樣及線圈交流損耗的電測量系統；從而為交流損耗的研究提供實驗數據與理論檢驗標準。
  5. Standards of digital tv broadcast has specified transmitting systems which are based on various medium such as satellite - oriented transmitting system ( dvb - s ), cable - oriented transmitting system ( dvb - c ), terrestrial - oriented transmitting system ( dvb - t ). different system adopts different methods of channel codec, modulation and demodulation, but for signal source block codec, only mpeg - 2 standard has been applied for all the systems. as a compression standard being specified in digital tv broadcast transmission, mpeg - 2 has been widely involved on compression occasion

    對于數字電視信號的傳輸，數字電視廣播標準制定出基於多種媒質傳輸的傳輸系統，如衛星傳輸系統（ dvb - s ） ，電纜電視傳輸系統（ dvb - c ） ，地面廣播（ dvb - t ） ，不同的傳輸系統制定不同的通道編碼和調制解調的方法，但是對于所有傳輸系統的信源編碼則一律採用mpeg - 2這一標準。
  6. The signal testing unit examines directly the production parameter - the belt " s velocity and sends out electrical signal similar to sine wave. the signal handling and analyzing unit disposes of the sensor " s output signal by amplifying, plasticisering a / d transforming and measuring and displays it digitally. after the alarming and controlling unit compares the testing signal with the standard one and analyses, it will show the normal production situation or alarm at the abnormal state and control the related equipments if it is necessary

    信號檢測單元直接檢測皮帶速度，並輸出近似正弦波的電信號：信號處理與分析單元對傳感器輸出信號進行放大、整形、 a d轉換和計算等處理，並進行數字顯示；預警、報警、控制單元將信號與標準信號進行比較，經分析后顯示正常狀態或對異常狀態進行聲、光預警、報警。
  7. Photography - digital still cameras - determination of exposure index, iso speed ratings, standard output sensitivity, and recommended exposure index

    攝影技術.數字靜物攝影機.曝光指數iso感光度標定值標準輸出靈敏度和推薦曝光指數的測定
  8. The system generates 18 kinds of worldwide used hdtv test pattern signals supported by smpte 274m standard, and also provides ypbpr, rgb video outputs both in digit and analog and the output interfaces of itu - r bt. 1120 - 2 / gy / t157 - 2000 studio hdtv digital video signal interface standard

    該系統生成了符合smpte274m國際標準的18種普遍採用的hdtv測試圖案信號。它提供ypbpr 、 rgb兩種視頻數字輸出與模擬輸出，其介面符合itu - rbt . 1120 - 2 / gy / t157 - 2000演播室高清晰度數字視頻信號介面標準。
  9. Standard numeric format strings output examples

    標準數字格式字元串輸出示例
  10. Xmt series intelligence digital indicate controller and have advantanges of small size and high anti - interference. the products are manufactured according to the international standards and use transformer or 85 ? 264vac wide range input switch power. multiple installation dimensions allow for compatibility with most of the automatic industrial controlling / adjusting instruments in the world in respects of performance specificatons, input patterns, output functions and installation dimensions. therefore, the products are digital controllers at internationally advanced level

    Xmt系列智能數字顯示控制器，體積小，抗干擾能力強，產品按國際標準製造，採用變壓器或85 ? 264vac寬范圍輸入的開關電源，並有多種外型尺寸，能與世界大多數工業自動控制/調節儀表在性能指標、輸入方式、輸出功能、安裝尺寸上兼容，是具有國際先進水平的數字控制器。
  11. An improved high - resolution current - mode sorter is presented. its structure complexity is o ( n ), which is crucial to the expansion of its size, and its dynamic range is large. only one clock signal and one reset signal are needed. no biasing signal is required. the operation point is constructed according to the input current, so it is self - adaptive, which is very important for an all - purpose component. in average value circuit, subtraction circuit, winner - take - all ( wta ) circuit and control circuit, it has good performance even at a large input current. this sorter has high precision, high resolution and low power, as has been proved via hspice simulation. it can be implemented in the standard digital cmos technology and widely used in many fields, so it is of great value in applications

    提出了一種改進的高精度電流型排序電路.它的結構復雜性僅為o （ n ） ，便於擴展;動態范圍大;它是自適應的，工作點由輸入電流確定，故不需要偏置信號，這對作為通用器件使用的排序電路來說是很重要的.通過利用平均值電路、減法電路、 wta電路和控制電路，可以使該電路在大輸入電流下依然保持高性能. hspice模擬表明該電路具有高準確性、高精度、低功耗的特點.它能用標準數字cmos工藝來實現，可以被應用於很多領域，具有很高的應用價值
  12. Single phase ac active reactive power meter double screen digital display outline dimension 80160 mm rs - 485 standard serial communication ma transmission output switch power supply input voltage 0220 v, input current 05 a active power display 1100 w, reactive power display 1100 var

    單相交流有功無功功率表雙屏數字顯示外形尺寸80160 rs - 485標準串列通訊4 20 ma變送輸出開關電源供電電壓輸入0 220v ;輸入電流0 5a ;有功顯示1100w ，無功顯示1100var 。
  13. Single phase ac reactive power meter : light column display single screen digital display, outline dimension 80160 mm, rs - 485 standard serial communication ; transmission output ma ; high low limit alarm function switch power supply input voltage 380 v input current 05 a display range 01900 var

    單相交流無功功率表光柱顯示單屏數字顯示外形尺寸80160 rs - 485標準串列通訊變送輸出4 20 ma ，上下限報警功能開關電源供電;輸入電壓380v ;輸入電流05a ;顯示量程0 1900var 。
  14. Then, it analyzed can and canopen application layer, including : real - time characteristics of can, the core of canopen - od, all kinds of communication objects, the allocation of cob - id and some device profiles. and xcanopen was brought forward for implementing of canopen in power line communication. then, on the reference design platform of freescale - agilent, xcanopen ’ s two standard software interfaces, bottom driver and function of communication and network management based on canopen were implemented

    本文詳細分析了低壓電力線通信數據機的結構與工作原理;分析了can協議及其可以保證數據實時可靠傳輸的實質，剖析了應用層協議canopen ，著重解釋了canopen的核心?對象字典od 、各類通訊對象、標識符的分配，以及一些設備子協議（ deviceprofiles ） ，並提出了在電力線通信上實現canopen的解決方案? xcanopen框架;在基於freescale - agilent電力線通信的參考設計平臺上實現了xcanopen的兩個標準軟體介面，電力線通信底層驅動軟體的設計以及基於canopen協議棧的節點通信和網路管理功能，達到了使用canopen協議來實現電力線通信的標準化模塊的目的;最後，在canopen數據通信的實時調度上做了進一步的改進探索研究。
  15. Sercos interface, a serial real - time communications system, is an connection of nc controller, drives, motion unit and i / o unit of nc control system, which are connected by a fiber optical ring

    Sercos介面是數字控制系統中連接數字控制器、驅動器、執行機構以及輸入輸出部件，在彼此間進行實時通訊的國際標準。 sercos介面採用光纜將控制部件連接在一起，構成一個封閉的環路。
  16. Digital earth shows great prospects for next generation of global information infrastructure, and the research on geospatial information sharing and interoperation is becoming the frontier of key technology of digital earth construction. based on the opengis standard and the xml standard, geospatial object markup language - geoml, which can be used to transmit, display, sharing and interoperation the electronic map on internet, has been proposed for the first time in this paper. the content of geoml standard has been detailed, also the prototype system used for testing the standard has been designed and implemented, and the demo is presented. the result shows that publishing, sharing and interoperation of geospatial information on internet intranet have been come into true

    數字地球為信息社會的未來發展展示了美好前景，而研究地理空間信息共享與互操作正在成為數字地球建設關鍵技術的前沿。作者基於opengis規范和xml標準，首次提出基於internet的地理空間信息標志語言- geoml來實現地理空間信息共享和互操作，研究並設計了可在internet上傳輸顯示和共享電子地圖的geoml標準規范內容，並設計實現了檢驗該標準規范的原型系統，給出了示範。檢驗證明，利用該標準規范可初步達到地理空間信息在internet intranet上的發布共享和互操作。
  17. New standards are presented continuously, link media type is developing and the line speed is updating continuously. in 1998, the ieee802. 3z gigabit ethernet standard was ratified, it use fiber as it ' s link media, line speed was upgraded up to 1, 250 mbps. it offers the users wide digital highway

    到1998年， ieee正式提出了編號為802 . 3z的千兆位以太網標準1000base - x ，採用光纖作為傳輸介質，使用高達1250mbps的基帶傳輸速率，為用戶提供了寬闊的數字高速公路。
  18. Writes the specified subarray of unicode characters to the standard output stream

    將指定的unicode字元子數組寫入標準輸出流。
  19. Class does not provide a method to write data to the standard error output stream, or a property to change the line termination string for data written to that stream

    類不提供將數據寫入標準錯誤輸出流的方法，也不提供更改寫入該流的數據的行終止字元串的屬性。
  20. Method writes data to the standard output stream followed by the default line termination string ; that is, data is followed by a carriage return and line feed " - r - n "

    方法將後面帶默認行終止字元串的數據寫入標準輸出流；即，數據後面帶回車符和換行符（ 「 r n 」 ） 。
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