1) self-shrinking sequence
自缩序列
1.
New model and studying of self-shrinking sequence developed on GF(3)
扩展在上GF(3)新型自缩序列模型及研究
2.
A new model of self-shrinking sequence over GF(q) is constructed.
构造了GF(q)上一种新型的自缩序列模型,利用有限域理论,研究了生成序列的周期和线性复杂度,得到如下结论:周期上界qn(q-1)/2,下界q(q-1)「n/q」;线性复杂度上界qn(q-1)/2,下界q(q-1)「n/q」-1。
2) the self-editing sequence
自缩控序列
3) self-shrinking sequence
自收缩序列
1.
Stabilities of period and linear complexity of the self-shrinking sequence;
自收缩序列的周期和线性复杂度稳定性
4) generalized self-shrinking sequence
广义自缩序列
1.
Using generalized self-shrinking sequences in the C Programming Language;
广义自缩序列在C语言程序设计中的实现
2.
Pseudo-randomness of a class of generalized self-shrinking sequences;
一类广义自缩序列的伪随机性
3.
On the least period of generalized self-shrinking sequence b(a_(k+1)+a_(k+2));
关于广义自缩序列b(a_(k+1)+a_(k+2))的最小周期
5) generalized self-shrinking generator
广义自缩减序列
6) Generalized self-shrinking sequences
广义自缩序列
1.
Study of the security of the generalized self-shrinking sequences;
广义自缩序列的安全性研究
2.
In this paper,an attack is proposed for one of these sequences,named the fourth class of generalized self-shrinking sequences,which aims at the recovering of initial state of the LFSR,the key idea is the following:Firstly,a quasi-like sequence has been constructed by this paper.
广义自缩序列是基于LFSR的一类非常规钟控的序列,具有良好的伪随机性,可以用作加密时的密钥流。
补充资料:快速自旋回波序列
快速自旋回波序列
磁共振成像术语。多回波自旋回波序列的改良方式。发射90°射频脉冲后,连续发射多个180°脉冲,形成多个自旋回波的成像序列。多回波SE序列中,90°脉冲发射后的每个回波产生各自的图像,最终形成多幅不同加权的图像。传统的SE序列中,一组回波产生的信号组合形成单个图像,每个TR获得一个特定的相位编码数据;FSE序列中每个TR期间内获得几个彼此独立的相位编码数据,所以形成一幅图像可使用较少的脉冲激励及较少的TR周期,从而减少扫描时间。FSE序列扫描时间可表示为:T=TR· Ny ·N/m TR为重复时间,Ny为相位编码行数,N为采集次数,m为回波链长。
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