permutation matrix meaning in Chinese

互换矩阵
置换矩阵

At the same time , a novel approach to construction of ldpc codes based on the permutation matrix was proposed which got a parity check matrix with the shortest girth is 6 . these codes keep the advantage of linear encoding and become more flexible . simulations show that the performance of short length codes of this kind is as excellent as other ldpc codes
同时提出一种基于置换阵循环移位的构造方法,得到的校验矩阵围长至少为6 ,且保持编码的线性复杂度,码率灵活,仿真结果验证了置换阵ldpc码码长较短时,在高斯信道下性能接近或超过现有其他构造方式的ldpc码。
By using matrix theory and the theory of finite fields , we study the applications of projection matrix , permutation matrix , difference matrix , hadamard product , the generalized hadarnard product , kronecker product , kronecker sum and the generalized kronecker sum to construction of orthogonal arrays
本文利用矩阵理论和有限域理论，研究了投影矩阵、置换矩阵、差集矩阵、 hadamard积、广义的hadamard积、 kronecker积， kronecker和、广义的kronecker和在构造正交表方面的应用。