【摘要】 扩频序列设计是直接序列扩频通信系统的关键课题之一。本文在一类具有二值自相关函数的二相序列基础上 ,构造了一类新的二相序列族 ,计算了新序列族的相关函数 ,结论表明 :该二相序列族在Welch界意义下是最佳的 ,可适用于直接序列CDMA通信系统中更多还原

【Abstract】 Spreading sequences design is one of the key task in the direct-sequence spread spectrum communication systems. In this paper,based on a class of binary sequences with two-level autocorrelation functions, a new family of binary sequences is constructed and their correlation functions are calculated, it is shown that the new sequence family is optimal with respect to Welch′s bound, and can be used in direct-sequence CDMA communication systems.更多还原