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中文摘要：
为扩大准同步码分多址通信系统的地址码选择范围及减弱零相关区序列偶设计对相关参数的限制条件,基于任意一个长度大于4的最佳自相关序列（偶）,运用交织技术和递归运算,提出了三类新型的零相关区序列偶集的构造方法.而且,在保持所构造的零相关区序列偶集中的序列偶数目不变的条件下,通过递归运算,可以将序列偶长度及零相关区宽度成倍扩展.同时,所构造的零相关区序列偶集接近理论边界,用于准同步码分多址通信系统可消除共信道干扰,提高通信质量.
英文摘要：
In order to expand the choice of address codes of quasi-synchronous code division multiple access （QSCDMA） systems and to relax the limit on the related parameters, based on an arbitrary optimal sequence whose length is longer than 4, three classes of novel methods for constructing zero correlation zone （ZCZ） sequence pairs set are proposed via the interleaved technique and the recursive operation. In addition, the length of new sequence pairs and the ZCZ width can doubled through recursive operation, while keeping the number of the sequence pairs in the constructed ZCZ set unchanged. The constructed sequence pairs set in this paper is close to the theoretical bound, and thus once it is adopted to eliminate the co-channel interference in QSCDMA systems, the quality of system communication will be enhanced.
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