在数学上,特别是在矩阵理论中,置换矩阵是一个方形二进制矩阵,它在每行和每列中只有一个1,而在其他地方则为0。 设P 是一个 m×n 的 (0,1) 矩阵,如果 m≤n且 PP′=E,则称 P为一个 m×n的置换矩阵。其中P′是P的转置矩阵,E是m阶单位方阵。
Analysis shows that there is only a difference of one permutation matrix between the estimated and the real separation matrices, if the J-Di algorithm that is used traditionally for non-orthogonal JD, is directly applied to JBD.
4.研究表明,将适用于非正交JD的J-Di算法直接用于JBD所得到的分离矩阵,与真实的JBD分离矩阵之间,只相差一个置换矩阵。
参考来源 - 基于联合(块)对角化的盲分离算法的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
使用置换矩阵能够根据每对符号单独分配匹配得分。
A substitution matrix lets you assign match scores individually to each pair of symbols.
在用循环置换矩阵构造准循环LDPC码时会出现一类无法消除的环,称为平衡环。
QC-LDPC codes constructed by circulant permutation matrices will lead to inevitable cycles, named balanced-cycles.
采用置换矩阵,验证了契约关系模型理论构建与现实运作间的关联关系及系统的同构性。
Applying permutation matrix, the association and the system isomorphism between contractual relationship modeling in theory and its operation in practice were verified.
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