This paper constructs irregular LDPC codes of unequal error protection with a parity check matrix in a lowertriangular.
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。
2
A substance is through the primary transformation into an upper triangular matrix, the transformation matrix is a unit lowertriangular matrix.
实质上是将A通过初等行变换变成一个上三角矩阵,其变换矩阵就是一个单位下三角矩阵。
3
All the land tortoise species formed a tight cluster of points in the upper part of the triangle; all the water turtles cluster in the lower part of the triangular graph.