trellis code 中文意思是什麼

trellis code 解釋
格碼
  • trellis : n. 格子；格子墻[籬]；格子涼亭；（葡萄等的）棚架；【建築】格（子結）構。vt. 裝格子（在窗上）；用棚架支撐。
  • code : n 1 法典；法規。2 規則，準則；（社會、階級等的）慣例，習俗，制度。3 （電）碼，代碼，密碼，暗碼；...
  1. Absolute minimal trellis complexities of extended codes and their dual codes of two types of linear block codes whose code length is odd are given

    給出了兩類奇數碼長線性分組碼的擴展碼及其對偶碼的絕對最小網格圖復雜度。
  2. But for the same reason, it have n ' t the same diversity feature as space - time block code, as well as it have n ' t the same error correction capability as convolutional code or trellis code modulation

    由於空時格碼兼顧了分集和通道編碼，導致其分集特性不如空時分組碼，糾錯能力不如卷積碼和格形編碼調制。
  3. The research for key techniques of turbo codes is processed. it includes, ? the design of optimal component codes and the performance of asymmetric turbo codes are analyzed ; ? a search algorithm for short random interleaver based on the distance spectrum and ids criteria is carried out and simplified ; ? random puncturing method to improve the weight distribution of turbo codes with some special code rates is analyzed and simulated. ? the effect of different schemes of trellis termination to the performance of turbo codes is analyzed ; ? a new low complexity decoder structure is provided ; 5

    對turbo碼的部分關鍵問題進行分析和改進，主要包括： ?分析了最優分量碼的設計和非對稱turbo碼的性能； ?設計了基於距離譜和ids的短隨機交織器搜索演算法並進行了簡化； ?提出了採用隨機刪余方式改善特定高碼率turbo碼重量分佈特性的方法； ?分析了不同編碼器狀態歸零方案對turbo碼性能的影響； ?提出了一種降低實現復雜性的turbo迭代譯碼器結構。
  4. The simulation analysis of space - time trellis code and ofdm combined communication system performance

    相結合的通信系統性能模擬分析
  5. The fourth part considered how to improve system performance by adopting transmission diversity in flat fading channels. in the traditional space - time trellis code design, the space diversity, time diversity and channel code are concerned together to get best space diversity, time diversity and code gain

    傳統的空時格碼把空間分集、時間分集和前向糾錯編碼聯合設計，以n摘要獲得最大的空間分集、時間分集、通道編碼的增益。
  6. The thesis also gives a simple introduction about the end of trellis, the design of puncture matrix and tcm technology, etc. though turbo code is becoming more and more popular, its practical application is limited because of absence in theory and time delay in algorithm

    其它諸如trellis結尾問題、刪余矩陣的設計、 tcm調制等方面，本文給出了初步介紹，詳細可查閱文獻。 turbo碼現在正得到越來越廣泛的應用，但是由於理論的缺乏和演算法的時延性，使turbo碼的實際應用受到一定的限制。
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