1) cyclic group coding
循环群码
1.
Discarding both concepts of Determinant rank and the Euclidean distance while considering the number of antennas and signal to noise ratio (SNR),the optimized cyclic group coding is thus obtained by minimizing the joint border of SEP in a specific extent.
摈弃行列式秩或欧氏距离的概念,综合考虑天线数及信噪比,在特定范围内最小化符号误码率联合边界,最后得到了优化循环群码。
2) cyclic code
循环码
1.
Some properties of a kind of cyclic code over F_2+uF_2;
四元素环F_2+uF_2上一类循环码的性质
2.
Spectral representation of cyclic codes over Z_q of length N=p~kn;
Z_q上长为p~kn的循环码的谱表示
3.
The software method to realize cyclic code s changing in absolute pulse generator;
绝对式脉冲发生器中循环码转换的软件实现法
3) cycle rolling chains
循环链码
1.
SMT-720 cycle rolling chains simulating load checking device;
SMT-720循环链码模拟载荷检验装置
4) quasi-cyclic code
准循环码
1.
It is shown that a code of the length n over F_p+uF_p+…+u~kF_p is linear if and only if its Gray image is linear,and a code of the length n is cyclic if and only if its Gray image is a quasi-cyclic code over F_p of the index p~(k-1) and the length p~k n.
定义了环(Fp+uFp+…+ukFp)n到Fppkn的一个Gray映射;给出Gray映射的几个性质,证明环Fp+uFp+…+ukFp上的长为n的线性码的Gray像仍是线性码;及该环上长为n的(1-uk)-循环码的Gray像是域Fp上的长为pkn、指数为pk-1的准循环码。
2.
It is also shown that the generalized Gray map image of the((1-p~k)-cyclic) code is a distance-invariant(not necessarily linear) quasi-cyclic code.
文章引入了Zpk+1码和Zp2码之间的等距同构kφ(k≥1);利用kφ把G ray映射∶Zn4→F22n推广为∶Znpk+1→ZPpkn(p为素数);而且利用kφ,负循环码概念被推广到Zpk+1码,得到了(1-pk)-循环码;依据等距同构φk,给出了这些码的表示;也证明了(1-pk)-循环码在推广的G ray映射下的像是距离不变(不一定是线性的)的准循环码。
3.
A necessary and sufficient condition for the Gray image of quasi-cyclic code to be cyclic is given.
最后,证明了码C是环Zp[u]/(um-1)上一个循环码的充分必要条件为它的Gray映射下的像是一个准循环码。
5) cycle code
循环编码
6) constacyclic code
常循环码
1.
Gray images of linear codes and constacyclic codes over F_p+uF_p+…+u~kF_p;
环F_p+uF_p+…+u~kF_p上的线性码和常循环码的Gray像
2.
Some constacyclic codes of length 2~e over Z_(2~(k+1));
Z_(2~(k+1))环上长度为2~e的常循环码
3.
BCH bound for constacyclic codes over ring Z_p~e;
环Z_p~e上常循环码的BCH界
补充资料：循环
循环
①顺着环形的轨道旋转，比喻事物周而复始的运动。②物理学名词。物质系统从某一状态经过一系列变化回到初始状态的过程。③医学上指血液和淋巴液在循环系统的流动过程。
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