For the importance of the relationship between information and parity, the generator matrix and the parity-check matrix of every code have been discussed.
由于信息码元与校验码元之间关系的重要性，对每一种码的生成矩阵和校验矩阵均进行了讨论。
2
The method used a parity-check matrix of a short LDPC code as its mother matrix upon which a long code was constructed with circulant permutation matrices.