block code 中文意思是什麼

block code 解釋
代碼組
  • block : n 1 片，塊，大塊；粗料，毛料；木料；石料；金屬塊；【建築】塊料，砌塊；【地質學；地理學】地塊。2 ...
  • 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. In a start - stop teletypewriter system, the significant condition of the signal element that immediately precedes a character signal or block signal and prepares the receiving equipment for the reception of the code elements

    在啟動一個電傳打字機系統中，迅速領先字元信號或閉塞信號，並且準備好接收設備為接收代碼元件的信號元件的有效狀態。
  2. Stbc ( space time block code ) is the main method to realize mimo diversity, and it is good at mitigating the influence of wireless multipath fading

    而stbc （ spacetimeblockcode ，空時分組碼）則是實現mimo分集的重要手段，長于對抗通道的多徑衰落。
  3. Turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ). in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code ; the principle of turbo code and the iterative decoding is secondly expanded ; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed ; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived ; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel

    本文首先介紹了turbo碼的背景知識，包括差錯控制的基本原理、分組碼和卷積碼；然後闡述了turbo碼的基本原理，包括turbo編譯碼器結構及迭代譯碼原理；較為詳細地描述了關鍵的譯碼演算法： ?種改進的最大后驗概率（ map ）譯碼演算法及迭代譯碼演算法；提出了一種新的turbo碼結構：混合turbo碼（混合級聯卷積碼） ；並用編碼性能聯合界分析方法對混合turbo碼進行了性能分析，得出了其平均性能上界；並在高斯白噪聲通道和瑞利衰落通道上分別作了一些應用研究及計算機模擬實驗。
  4. A parallel computing software is established independently. this software is a cell - centered finite - volume, structured grid, multi - block code which solves the equations governing inviscid and viscous flow of a calorically perfect gas or of an arbitrary mixture of thermally perfect gas undergoing non - equilibrium chemical reactions

    通過簡單的參數控制，該程序既可計算二維、軸又巾彌和三維量熱完全氣體，也可計算化判卜平衡流;既可計算無粘流，也可計算粘性流。
  5. Channel coding has two kinds : block code and convolution code

    通道編碼分為分組碼和卷積碼兩大類。
  6. Ldpc ( low density parity check ) code is a kind of linear block code that defined by very sparse parity matrix or tanner graph, and it is also called gallager code since gallager initially presented it

    Ldpc （ lowdensityparitycheck ）碼是一類用非常稀疏的校驗矩陣或二分圖定義的線性分組糾錯碼，最初由gallager發現，故亦稱gallager碼。
  7. The linear block code is called a binary low - density parity - check code if it is based on a sparse parity - check matrix. this sort of code was originally proposed by dr. gallager in 1962, which cannot attract a large amount of interest at that time

    低密度奇偶校驗（ ldpc ）碼是基於稀疏校驗矩陣的線性分組碼，它最初由gallager於1962年提出，當時並未受到人們的重視。
  8. Iterative decoding of space frequency block code ofdm systems

    系統迭代解碼演算法
  9. Ldpc code belongs to the linear block code which is encoded by the information sequence multiplies generator matrix. although the parity - check matrix of ldpc code is sparse, the generator matrix is not. the encoding complexity of it is linearly proportional to the square of code length

    Ldpc碼屬于線性分組碼，線性分組碼的通用編碼方法是由信息序列根據碼的生成矩陣來求相應的碼字序列，盡管ldpc碼的校驗矩陣是非常稀疏的，但它的生成矩陣卻並不稀疏，這使得其編碼復雜度往往與其碼長的平方成正比。
  10. 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。
  11. The performance merit of the proposed block code is confirmed by simulation results and compared with other space - time block codes in terms of average bit error probability

    對新得到的分組碼的性能進行了模擬，並與其他空時分組碼就平均誤比特率做了比較，證實了其性能的優越性。
  12. Realization of mimo system simulator based on space - time block code

    基於空時分組碼的多輸入多輸出系統模擬實現
  13. Decoding algorithm of unequal error protection block code based on tree topology

    基於樹狀圖的不等保護分組碼譯碼演算法
  14. Differential space - time block code based on amicable orthogonal design

    基於互滿正交設計的差分空時分組碼
  15. Joint channel estimation and symbol detection for space - time block code

    空時分組碼的聯合通道估計和符號檢測演算法
  16. Study on linear block code

    線性分組碼問題研究
  17. Linear block code

    線性分組碼
  18. Being an important linear block code in error control field, the reed - solomon ( rs ) code has very strong capability of correcting random and burst errors, which is widely used in various modern communication systems to satisfy the requirement of channel reliability

    Rs （ reed - solomon ）碼是差錯控制領域中一類重要的線性分組碼，由於具有很強的糾錯能力，因而被廣泛地應用於各種現代通信系統中，以滿足對通道可靠性的要求。
  19. Necessary condition for symbol transmit rate in which maximum diversity and channel capacity of linear space - time code are attained is given and a new systematic space - time block code design framework is proposed

    摘要給出了線性空時碼同時能達到最大分集度和通道容量的符號傳輸率必須滿足的條件。
  20. Also, the low complexity decoding algorithm for space - time block code ( stbc ) is emphasized and studied as well, which can make it convenient for practical applications

    此外，為了便於空時分組碼的應用和實現，本文著重研究了空時分組碼的低復雜度譯碼演算法。
分享友人
分享到 Line

分享到臉書