time parity 中文意思是什麼

time parity 解釋
時間宇稱
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • parity : n. 1. 同等，平等。2. 同格，同位。3. 同樣；類似，一致。4. 等量，等價。5. 【物理學】宇稱（性），奇偶性。6. 【商業】平價；價值對等。
  1. 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。
  2. At such a time it is generally possible to attain a certain parity between the two sides, or to change the enemy ' s absolute superiority to relative superiority and our absolute inferiority to relative inferiority, and occasionally even to become superior to the enemy

    此時雙方對比，往往能達到某種程度的均衡，或者敵軍的絕對優勢改變到相對優勢，我軍的絕對劣勢改變到相對劣勢，甚至有敵軍劣於我軍，而我軍反優于敵軍的事情。
  3. This paper made a careful study on a class of quasi - regular ldpc codes which could encode in linear time only making use of their parity matrix such as - rotation ldpc codes. two factors of the minimum distance and girth length were discussed to improve the performance of these ldpc codes

    本文著重研究以旋轉ldpc碼為代表的準規則結構的ldpc碼的構造和編碼方法，可以直接利用校驗矩陣實現快速線性編碼，並從碼距和圍長兩個方面，對這類ldpc碼字性能進行分析和優化。
  4. The encoding complexity of ldpc codes length n seems indeed to be of order n2, the dissertation study the coding scheme with linear time complexity. afterward, it introduces the coding schemes used in dvb - s2 and gets the parity check matrix by simulation

    針對ldpc碼通用編碼演算法的復雜度與碼長的平方成正比的問題，重點研究了ldpc碼的快速編碼方法，總結出了使ldpc碼能夠達到線性編碼的途徑。
  5. At the same time, a novel approach to construction of ldpc codes based on the permutation matrix was proposed which got a parity check matrix with the shortest girth is 6. these codes keep the advantage of linear encoding and become more flexible. simulations show that the performance of short length codes of this kind is as excellent as other ldpc codes

    同時提出一種基於置換陣循環移位的構造方法，得到的校驗矩陣圍長至少為6 ，且保持編碼的線性復雜度，碼率靈活，模擬結果驗證了置換陣ldpc碼碼長較短時，在高斯通道下性能接近或超過現有其他構造方式的ldpc碼。
  6. Low density parity check ( ldpc ) codes are good error - correcting codes, which can approach shannon ' s capacity limit. due to the sparsity of its check matrix, ldpc codes can be decoded only with linear time complexity using iterative decoding algorithm. therefore, ldpc codes have become one of the most attractive fields in the channel coding community

    低密度校驗碼是一種逼近香農限的好碼，由於其校驗矩陣的稀疏特性，採用迭代譯碼演算法，它的譯碼僅具有線性時間復雜度，所以目前ldpc碼己成為通道編碼理論界的研究熱點之一。
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