數字電碼 的英文怎麼說

中文拼音 [shǔzìdiànmǎ]
數字電碼 英文
figure code
  • 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 ...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 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
  1. Test signals for digitally encoded colour television system

    數字編碼彩色電視系統用測試信號
  2. Encoding compression technology of digital audio in digital tv

    論數字電視中數字音頻的編碼壓縮技術
  3. Design of dtv logo inserter based on video transcoding

    基於視頻轉換編碼的數字電視臺標機設計
  4. The influnce of second encoding on digital television picture quality

    二次編碼對數字電視圖像質量的影響
  5. To extent the use of this 1c, some circuit blocks are added. in the design, digital circuits are used to process the signal and control the precision of coding. and some circuits are used in different time by several functions to reduce the number of transistors used and the dissipation

    電路設計中，為了便於信號處理以及控制編碼精度，採用數字的方法進行量階和預測碼的計算；同時，為了減小電路規模，採用了時分復用的概念，用同一部分數字電路實現量階調整和預測碼的生成，增加了編碼精度，減小了電路的規模和功耗。
  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 beginning, the dissertation gives an overview of digital video system and an introduction of the format of mpeg - 2 transport stream, mpeg - 2 physical interface and frame structure of ds3 stream

    文章首先介紹了關于數字電視系統的一些基本概念， mpeg - 2傳送流格式和mpeg - 2的物理介面，以及ds3碼流的幀結構。
  8. Transmission of time code and control code in the ancillary data space of a digital television stream

    數字電視附屬數據空間內時間碼和控制碼的傳輸規范
  9. Another function is to send the signal to the d / a board which converts the signal into real control electric current. this current control vwf which control the wind machine to create the wind

    單片機把此16進制數化asc碼送顯示，再送給d a板，由d a板的數字電位器轉化成真正的控制電流。
  10. Study on a new type of digital coding track circuit

    一種新型的數字編碼軌道電路
  11. In the whole system, the digital tv ( dtv ) front - end is an important part in the tv digitalization, and many key digital equipments and technology are introduced in it, like digital satellite receivers 、 mpeg - 2 digital encoders 、 ts multiplexers 、 digital modulators

    在整個數字電視網路系統中，數字電視前端是電視數字化的重要環節之一，它包括了許多關鍵性的數字設備和技術，例如數字衛星接收機、 mpeg - 2數字編碼器、傳輸流復用器、數字調制器等。
  12. Dtv ( digital television ) technology integrates the most advanced image compressed encoding technology and the digital communication technology. it has become one of the focuses in the high - tech competitions. having the imitative in this field will take the lead of high technology in the future, and get great chance in the growing market

    數字電視（ digitaltv ）技術是當今世界上最先進的圖象壓縮編碼技術和數字通信技術的結合，是當今世界高技術競爭的焦點之一，掌握了這一技術就可能搶佔到未來電子技術的制高點，控制新一代電子產品的市場，搶占商機。
  13. To call long distance, dial 1, the area code, and then the seven - digit number

    要打長途電話，先按1號，再按區號，然後是7位數字電話號碼。
  14. There are altogether three main chips in the digital tv ' s receiver, the channel demodulating chip, the source decoding chip and the post - process chip

    數字電視的接受機中，主要包括通道解調、信源解碼、視頻后處理三個核心晶元。
  15. The merged blue print for digital terrestrial television broadcasting which suits to the developing status of dtv in china is a standard of the chinese dtv - t. ldpc code is used as fec

    中國地面數字電視廣播融合方案是根據中國數字電視發展現狀提出的一套地面數字電視標準，其中使用ldpc碼作為前向糾錯編碼。
  16. 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。
  17. Although stb just is a sort of terminal equipments of the tv signal transmission system, however pivotal technique involves the data demodulation, channel decode, transport stream de - multiplexing, audio and video signal decompression technique and real - time software technique with upriver data coding technique etc. therefore, software and hardware technology research and development of stb, which can increase usefulness with dependable of digital video signal and audio signal for study later make the theories preparation and backlog experience

    機頂盒雖然只是數字電視傳輸系統的終端設備，但所用到的關鍵技術涉及到數據解調、通道解碼、傳輸流的解復用、音視頻信號解壓縮技術以及實時軟體技術和上行數據的編碼技術等。因此，通過對機頂盒軟、硬體的研究開發，既能為以後研究如何提高信息傳輸的有效性和可靠性作理論上的準備，也為圖像信號和音頻信號的數字化處理積累經驗。
  18. This test platform is simplified ofdm digital television transmission system. the test platform provides a quick and efficient tool to testing the efficiency of ldpc coding for the setting up of dtv standard, without the need of the completing whold dtv system, saving time, improving work efficiency. even this platform is simplified version, but it still has all the key technique of dtv transmission system, accumulating experiences for the design of dtv transmission system, and it can easily expands

    由於數字電視傳輸系統是一個復雜龐大的工程，為了驗證數字電視傳輸系統中ldpc編碼的效率，以便於標準的確立，窄帶ldpc解碼-誤碼測試平臺就提供了一個快速，有效的編碼測試工具，而不用等整個系統完整的收發端設計完成之後才進行測試，大大的節省了時間，提高了工作的效率，有利於數字電視傳輸標準的盡快確定。
  19. 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。
  20. 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。
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