second generation computer 中文意思是什麼

second generation computer 解釋
第二代計算機
  • second : adj 1 第二的；第二次的；二等（的）。2 次等的；較差的；劣於…的 （to）。3 〈美國〉較年輕的。4 另一...
  • generation : n. 1. 代〈約30年〉，世代，時代；同時代的人。2. 一代[一世]。3. 生殖，生育；發生，產生。4. 【數學】（面、體、線的）形成。5. 完善化階段，完善化方案，完善化的模型；發展階段。
  • computer : n. 1. 計算者。2. （電子）計算機；計量器。-ism 電子計算機主義〈認為電子計算機萬能等〉。-erite, -nik 計算機專家；計算機工作者。
  1. 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。
  2. Second generation computer

    第二代計算器
  3. An example of direct assistance would be the force s computer - assisted fingerprint identification system. this is a second - generation application and one of the most advanced systems in the world

    警隊的計算機指紋鑒別系統，便是直接支持項目之一，這套系統已經進入第二代，而且是世界上同類系統中最先進的。
  4. One ic replaces many transistors in a computer ; result in a continuation of the trends begun in the second generation

    一個集成電路代替了計算機中的許多晶體管，導致了始於第二代的一些趨勢的繼續。
  5. Second, based on works mentioned above, an interactive graphic system, i. e. an interactive parametric three - dimensional model - building software about double circular arc profile bevel gear were established according to computer graphics, c language, vc + + language, autolisp programmed and cad technology, in which, language c completed complicated calculation, autolisp language finished model - building, vc + + language accomplished the generation of program interface

    在上述工作的基礎上，綜合應用計算機圖形學理論、 c語言、 vc + +語言、 autolisp編程以及cad技術，編制了一互動式圖形系統和雙圓弧弧齒錐齒輪的三維建模軟體。其中， c語言是計算部分， autolisp語言是模型建立部分， vc + +語言完成程序界面的生成。
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