Based on the suitable channel model, an implementation of quasi-cyclic low density parity check codes (QC-LDPC) for acoustic communication system in shallow water is demonstrated.
讨论了准循环低密度校验码(QC - LDPC)在浅海水声信道中的实现方案。
In fact, we have shown that by the generation matrices or parity check matrices of any MDS codes, one can get a new method of secret sharing.
实际上利用每一个mds码的生成矩阵或校验矩阵都可以得到一种分享秘密的方法。
The recently proposed extrinsic information transfer(EXIT) chart is a powerful yet simple method for optimizing irregular low-density parity-check (LDPC) codes.
最近提出的外部信息转移图是一种优化非正则LDPC码的简单高效方法。
Density evolution (DE) is one of the most powerful tools for analyzing the performance of low-density parity - check (LDPC) codes.
密度进化理论是分析低密度校验码的迭代译码性能的有效工具。
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.
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。
According to the characteristics of orthogonal parity-check matrixes, an exhaustive algorithm was proposed to search for the orthogonal parity-check matrixes of general block codes.
根据正交校验矩阵的特点，提出了一种一般线性分组码的正交校验矩阵的穷举搜索算法。
The channel decoding performance is improved with channel encoding error-correcting by using Low Density Parity-check codes (LDPC) codes.
结合低密度奇偶校验码进行信道编码纠错，提高了信道译码性能。
This paper constructs irregular LDPC codes of unequal error protection with a parity check matrix in a lower triangular.
采用了近似下三角校验阵的形式，构造了一类具有不等错误保护的非规则ldpc码。
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.
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。
Based on some characteristics of decoding and error-floors of low-density parity-check (LDPC) codes, an approach of adding vertical parity-check blocks to original LDPC blocks over GF (2) is proposed.
基于LDPC码在译码和差错平底区域的一些特殊性质，提出了一种为GF(2)域上的LDPC码已编码码字增加纵向校验码字的方法。
The low-density parity-check codes constructed by the proposed method have a good structure.
采用这一方法构造的低密度校验码具有良好的结构。
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。
It is proved that the parity check matrix for BCH code is a representation form in the eigenvector basis. Thus the study on cyclic codes may be brought into the framework of linear system theory.
证明了BCH码的校验矩阵是用循环变换的特征向量作基底时的一种表示形式，从而把循环码的研究纳入到线性系统理论研究的框架之中。
A method is disclosed that allows the easy generation of low-density parity-check codes that can realize superior error-correcting characteristics.
公开了一种允许容易地产生可实现优越纠错特性的低密度奇偶校验码的方法。
A two stage belief-propagation(TSBP)decoding algorithm was developed based on trapping set state(TSS)detection to reduce the error floor of low-density parity-check(LDPC)codes.
为了降低低密度奇偶检验码的误码平底，提出一种基于陷阱集状态检测的两级置信度传播译码算法。
These sub-codes can be the same or not, Hamming code, extended Hamming code, BCH code, single parity check code , and so on.
子码码型可以相同也可以不同，可以使用汉明码、扩展汉明码、BCH码、单奇偶校验码。
These sub-codes can be the same or not, Hamming code, extended Hamming code, BCH code, single parity check code , and so on.
子码码型可以相同也可以不同，可以使用汉明码、扩展汉明码、BCH码、单奇偶校验码。
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