具有高非线性复杂度的周期二进制序列的结构与计数
The structure and enumeration of periodic binary sequences with high nonlinear complexity
AI总结:
本文研究了具有高非线性复杂度的周期二进制序列的结构与计数方法,推导出其数量的精确计数公式。
摘要:
非线性复杂度作为衡量序列随机性的关键指标,定义为能够生成给定序列的最短反馈移位寄存器的长度。本文对非线性复杂度大于等于3n/4的n周期二进制序列的结构进行了表征。基于其结构,确定了此类周期序列数量的精确计数公式。
英文摘要:
Nonlinear complexity, as an important measure for assessing the randomness of sequences, is defined as the length of the shortest feedback shift registers that can generate a given sequence. In this paper, the structure of n-periodic binary sequences with nonlinear complexity larger than or equal to 3n/4 is characterized. Based on their structure, an exact enumeration formula for the number of such periodic sequences is determined.
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