Abstract: In order to do further research on pseudorandom punctured binary sequence pairs, a new block design（punctured difference set pairs） is presented. The properties of punctured difference set pairs are studied. A special class punctured difference set pairs is equal to pseudorandom punctured binary sequence pairs. By using difference set, several classes of punctured difference set pairs which satisfy the equivalent condition are obtained. The method enrich the content of the pseudorandom punctured binary sequence pairs.

Key words: signal design, punctured difference set pairs, difference set, pseudorandom punctured binary sequence pairs

摘要： 为了进一步研究伪随机屏蔽二元序列偶，提出了一类新的区组设计——屏蔽差集偶，证明了一类特殊的屏蔽差集偶和伪随机屏蔽二元序列偶是等价的，并研究了伪随机屏蔽二元序列偶存在的充分必要和必要条件；最后利用差集构造出一类伪随机屏蔽二元序列偶，丰富了伪随机屏蔽二元序列偶的研究内容。

关键词: 信号设计, 屏蔽差集偶, 差集, 伪随机屏蔽二元序列偶