A special class of difference set pairs is equal to the perfect binary arrays pairs.
差集偶是一类新的组合设计，一类特殊的差集偶与最佳二进阵列偶是等价的。
We obtained necessary conditions for the existence of perfect binary sequences, and presented a direct construction for a class of difference sets pairs.
我们得到了最佳二进序列存在的必要条件，给出一类差集偶的直接构造方法。
We obtained necessary conditions for the existence of perfect binary sequences, and presented a direct construction for a class of difference sets pairs.
我们得到了最佳二进序列存在的必要条件，给出一类差集偶的直接构造方法。
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