零相关亦称“不相关”。相关的一种。两个变量的相关系数r=0时的相关。零相关表示两个变量非线性相关，这时两个变量可能相互独立，也可能曲线相关。对于正态变量，两个变量零相关与两个变量相互独立等价。对于一般情形，两个变量相互独立时一定零相关。
第三种相关是零相关(zero correlation),即 两列变量之间无任何关系,在这种情况下,一 列变量变动时,另一列变量作无规律的变动。
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该文基于完备序列和正交序列集，构造出一类相互正交的零相关区序列集。
Based on perfect sequences and orthogonal sequence sets, a new class of mutually orthogonal sets of zero correlation zone sequences is presented.
提出了一种由一个完备序列的移位序列集和酉矩阵构造零相关区序列集的方法。
The key of this method is to spread a perfect sequence by correlation product of the shift sequences set of the perfect sequence and corresponding unitary matrix.
提出了一种由一个完备序列的移位序列集和酉矩阵构造零相关区序列集的方法。
Based on perfect sequences and unitary matrices, this paper constructs a kind of hexa-phase ZCZ sequence and also improved the method, finally analyzes their correlation functions.
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