周期为偶数的三值自相关四进序列偶

Even period quaternary sequence pair with three-level autocorrelation

提出了一种新型的离散信号形式———三值自相关四进序列偶,对周期是偶数的这种信号作了重点研究,得到了周期为偶数的三值自相关四进序列偶的自相关函数值的最大副峰模值至少是2的自相关特性,并给出了一种使得到的四进序列偶的副峰值是{0,-2},满足这种自相关特性的四进序列偶的构造方法。当构造方法中所用的伪随机二进序列偶具有好的平衡性时,构造得到的四进序列偶不仅具有很好的相关性而且具有很好的平衡性。

A new form of discrete signals, the quaternary sequence pair with three-level autocorre/ation, is proposed. The quaternary sequence pairs with even period is studied. The maximum out-of-phase autocorrela- tion is at least two is gotten, which has the character of any quaternary sequence pairs with even period and threeqevel autocorrelation. A construction of quaternary sequence pairs with even period and the autocorrelation value of { 0,--2 } is presented. And the balanced quaternary sequence pairs with optimal autocorrelation values can be obtained if the used pseudorandom binary sequence pairs have the optimum properties of balance.