然后，处理器（50）结合子阵H1和子阵H2来产生奇偶校验矩阵H。
The processor (50) then joins partial matrix H1 and partial matrix H2 to generate parity check matrix H.
而LDPC码性能的优劣，与其二分图中是否存在短长度的圈有关，也即与其奇偶校验矩阵的构造有关。
However, the performance of LDPC code depends on the girth of its bipartite graph, that is it depends on its sparse parity-check matrices H, especially the complexity of encoding with H.
LDPC码是一种可以接近香农限的线性分组码，可通过稀疏奇偶校验矩阵来构造，也可以用因子图来构成。
Low Density parity check (LDPC) codes are a kind of linear block codes approaching Shannon limit. They can be constructed either with spare parity-check matrix or with factor graphs.
摘要结构化低密度奇偶校验码可通过基矩阵和扩展因子描述，具有较低的编译码复杂度和优异的译码性能。
Abstract : The structured low density parity check (LDPC) codes can be described by the base-matrices and lifting factors, which have low encoding/decoding complexity and good coding performance.
提出了一种基于置换矩阵的非规则低密度奇偶校验(LDPC)码的校验矩阵设计方法。
A design of parity check matrix for Irregular LDPC codes based on per mutation matrix is proposed in this paper.
提出了一种基于置换矩阵的非规则低密度奇偶校验(LDPC)码的校验矩阵设计方法。
A design of parity check matrix for Irregular LDPC codes based on per mutation matrix is proposed in this paper.
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