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。

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Objective: Our aim was to study the characteristics of mutation of cartilage oligomeric matrix protein (COMP) gene in Chinese patients with multiple epiphyseal dysplasia( MED).

目的：探讨我国多发性骨骺发育不良患者中软骨寡聚物基质蛋白（COMP）基因的突变情况。

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A new crossover and mutation operation suitable for the matrix code is developed, and they can ensure that the new initial chromosomes are always feasible.

针对矩阵编码提出的特殊交叉算子和变异算子，能保证生成的新个体总是有效的。

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