【摘要】 提出了一种由同一n级线性反馈移位寄存器的φ(2~n-1)/n种不同m序列构造一个非线性序列的新方法,可增加序列的线性复杂度。通过计算机模拟,发现该序列有尖锐的自相关特性以及近似于白噪声的频谱特性,是一种良好的伪随机序列,可用作密钥序列。更多还原

【Abstract】 This article presents a new method to generate a class of nonlinear sequences based on φ(2n-1 ) /n different m - sequences the number stage of which is n , this can increase the complexity of the sequences . By computer analogy , we find that the new sequences has a peak in its auto-correlation and it has the properties similar to that of white noise . The new sequences is a good pseudo-random sequences and can be used as a kind of secret-key sequences.更多还原