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A New Systematic Construction of Zero Correlation Zone Sequences Based on Interleaved Perfect Sequences

机译:基于交织完美序列的零相关带序列的新系统构造

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摘要

In the literature, many constructions of zero correlation zone (ZCZ) sequences have been reported. While most of them are suboptimal with respect to the known upper bound, some constructed by Matsufuji and Torii respectively, are almost optimal (or even optimal). In this paper, we propose a systematic construction of almost optimal ZCZ sequence sets which generalizes the aforementioned constructions so that more flexible relationships between the set size and the sequence length are allowed. In particular, the obtained almost optimal ZCZ sequence sets of size $m$ and length $mn$ are new for $1 ≪ {rm gcd}(m,n) ≪ min(m,n)$. In addition, their alphabets can be binary or nonbinary since our construction is only based on interleaving perfect sequences according to a certain orthogonal matrix.
机译:在文献中,已经报道了许多零相关区(ZCZ)序列的构建。尽管它们中的大多数相对于已知的上限不是最佳的,但是分别由Matsufuji和Torii构造的一些几乎是最佳的(甚至是最佳的)。在本文中,我们提出了一种几乎最佳的ZCZ序列集的系统构造,该构造概括了上述构造,从而允许在集合大小和序列长度之间建立更灵活的关系。特别地,对于$ 1≪ {rm gcd}(m,n)≪min(m,n)$,获得的大小为$ m $且长度为$ mn $的几乎最佳的ZCZ序列集是新的。另外,它们的字母可以是二进制或非二进制的,因为我们的构造仅基于根据某个正交矩阵交织的完美序列。

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