decoding matrix 中文意思是什麼
decoding matrix
解釋
解碼矩陣-
This article uses the parity check matrix to produce a simplified decoding table under the premise of not using the structure standard array
摘要在不用構造標準陣列的前提下，利用一致校驗矩陣直接生成簡化的譯碼表。 -
The method includes split originality image region, filter, separately coding the lowest frequency sub - band coefficient, adaptively setting threshold of different image region, setting up flag matrix, and filtering after decoding to eliminate domino effect of split
這種編碼方法主要包括：對原始圖像進行分塊、濾波；對最低頻子帶系數單獨編碼；對各塊圖像自適應地進行閾值設置；設立標志矩陣；解碼后進行濾波消除分塊效應。 -
A decoding algorithm based on transform and fast hadamard transform changes the matrix multiplication to the addition, subtraction and position exchanging among the matrix elements, so reduces the demand of the instrument for computer
基於變換和快速阿達瑪變換的解碼演算法，將矩陣乘法簡化為矩陣元素間的加、減運算和位置交換，降低了儀器對微機系統的要求。 -
Then discusses conventional encoding and efficient encoding using special sparse parity check matrix in encoding algorithm, and expatiates the principle of message passing and spa which has the best performance in decoding algorithm
在編碼演算法里詳細討論了傳統的編碼演算法以及使用特殊形式奇偶校驗矩陣的快速編碼演算法。在譯碼演算法里介紹了mp演算法集的基本原理和譯碼性能最好的和乘積譯碼演算法。 -
The ldpc code ’ s parity check matrix generated by this scheme has high girth and can be used to coding directly, the coding complexity is lower. as to the decoding algorithm, i modify the message passing algorithm based on the girth that i can get in the structure of parity check matrix to improve the decoding performance. what is more, the new structure of the parity check matrix is easy to implement with the hardware
接著著重圍繞ldpc碼的校驗矩陣構造方法和譯碼演算法展開討論，在比特填充演算法的基礎上提出了一種ldpc碼聯合編譯碼方案，通過該方案構造的校驗矩陣不僅具有良好的girth分佈，而且能直接用於編碼，編碼的計算復雜度低;在譯碼方面，利用構造奇偶矩陣過程中girth分佈信息，優化解碼迭代過程，能有效提高系統性能;並且該方案構造的校驗矩陣更易於實際的編譯碼硬體實現。 -
Three decoder architectures, parallel, serial and partially - parallel approaches, are analyzed in this thesis. a kind of novel partially - parallel architecture for decoding ldpc code is proposed. the trade - off between the performance of the decoder, hardware complexity and data throughout can be achieved with this partially - parallel architecture for the random parity check matrix
論文分析了三種不同的譯碼器結構:并行結構、串列結構以及部分并行結構，並提出了一種新穎的部分并行結構的ldpc譯碼器，較好地解決了當校驗矩陣為隨機結構時，譯碼性能、硬體資源和數據吞吐量平衡的問題。 -
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。 -
2. after a brief introduction to belief propagation algorithm and a close research on the message flowing schedule, a new serial concatenated decoding method of ldpc codes based on the matrix decomposition and the two - way schedule is proposed in this thesis
在深入地研究了ldpc碼的基於因子圖模型的和積演算法基礎之上，給出了一種雙向信息傳遞策略的實現方案，提出了一種ldpc碼的串列級聯譯碼演算法。
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