1) circulant permutation matrices
循环置换矩阵
1.
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.
该方法利用一个短的LDPC码的校验矩阵作为其母矩阵,在此基础上采用循环置换矩阵构造一个长的LDPC码。
2.
By compressing circulant permutation matrices of the mother code,shorter QC-LDPC codes would be generated.
提出了一种压缩构造准循环低密度奇偶校验(QC-LDPC)码的方法,它利用一个圈长(girth)较大的QC-LDPC码作为基准码,对其校验矩阵中的循环置换矩阵进行压缩,从而构造出较短的码字。
2) circulant-shift permutation matrix
循环移位置换矩阵
1.
This paper designs a kind of circulant-shift permutation matrix called Q matrix,replacing identity matrix I as partitioned matrix,which fills in parity-check matrix H to form irregular QC-LDPC codes,based on the integration of 4G and WiMAX in technology.
16e标准推荐的由单位置换矩阵I构造的不规则QC-LDPC码,构造循环移位置换矩阵Q取代I矩阵填充奇偶校验矩阵H,仿真实验表明由Q矩阵取代I矩阵,能在一定程度上改善不规则QC-LDPC码的性能。
3) permutation factor circulant matrix
置换因子循环矩阵
1.
Euclid algorithm for finding the inverse and generalized inverseof the permutation factor circulant matrix;
置换因子循环矩阵求逆和广义逆的Euclid算法
2.
In this paper,the permutation factor circulant matrix over any field is introduced.
本文引入了任意域上置换因子循环矩阵,利用多项式环的理想的Gr(?)bner基的算法给出了任意域上置换因子循环矩阵的极小多项式和公共极小多项式的算法,同时给出了这类矩阵逆矩阵的两种算法最后,利用Schur补给出了任意域上具有置换因子循环矩阵块的分块矩阵逆的一个算法,在有理数域或模素数剩余类域上,这一算法可由代数系统软件CoCoA4。
3.
A fast Algorithm is presented seeking the solution of the permutation factor circulant matrix equation AX =b.
当置换因子循环矩阵非奇异时,该快速算法可求出该线性系统的唯一解;而当置换因子循环矩阵奇异时,该快速算法可求出该线性系统的通解。
4) permutation factor circulant matrices
置换因子循环矩阵
1.
The fast Fourier transform algorithm for the production of the permutation factor circulant matrices;
2个置换因子循环矩阵相乘的快速傅氏变换法
2.
A fast algorithm for calculating the inverse and self-reflective g-inverse and group inverse and Moore-Penrose inverse of the permutation factor circulant matrices of ordern is presented by the fast Fourier transform(FFT).
借助快速傅立叶变换(FFT),给出一种求n阶置换因子循环矩阵的逆阵、自反g-逆、群逆、Moore-Penrose逆的快速算法,该算法的计算复杂性为O(nlog2n),最后给出的两个数值算例表明了该算法的有效性。
5) r-Exchange ciculant matrix
r-对换循环矩阵
6) circulant matrices
循环矩阵
1.
Eigenvalues of a kind of circulant matrices and its application on subdivision;
一类循环矩阵的特征值及其在细分方法中的应用
2.
VLSI decoding design of low-density parity-check codes based on circulant matrices
基于循环矩阵的低密度校验码的VLSI译码设计
3.
Making use of some relations between discrete Fourier transformation and convolution, I give a sufficiency and necessary condition which estimates that a matrix is a circulant matrix, and give concretely an accounting formula of m-orders circulant matrices.
利用离散Fourier变换与卷积的关系,给出了判断一个矩阵为循环矩阵的充要条件,并具体给出了一种求循环矩阵的m次幂通项的计算公式。
补充资料：循环系统的进化鱼的循环系统
李瑞端绘
[图]
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条