CAJ | 학술논문

由于零相关区（zero correlation zone，ZCZ）序列偶集作为通信系统的扩频序列，具有减少或消除多址干扰，有效改善系统性能的优越性能。构造性能参数达到或接近最优的 ZCZ 序列偶集，成为研究的重点。提出多集合相互正交 ZCZ 序列偶集的构造方法，基于最佳序列偶和正交矩阵偶，构造多组相互正交的 ZCZ 序列偶集。先对 ZCZ 序列偶进行移位操作，引入正交矩阵偶对其进行扩展，得出的序列偶集合相互正交性能参数达到或接近最佳。同已有方法相比较，所提方法构造集合数目更多，且放宽了序列偶中对序列长度的要求。
유우령상관구（zero correlation zone，ZCZ）서렬우집작위통신계통적확빈서렬，구유감소혹소제다지간우，유효개선계통성능적우월성능。구조성능삼수체도혹접근최우적 ZCZ 서렬우집，성위연구적중점。제출다집합상호정교 ZCZ 서렬우집적구조방법，기우최가서렬우화정교구진우，구조다조상호정교적 ZCZ 서렬우집。선대 ZCZ 서렬우진행이위조작，인입정교구진우대기진행확전，득출적서렬우집합상호정교성능삼수체도혹접근최가。동이유방법상비교，소제방법구조집합수목경다，차방관료서렬우중대서렬장도적요구。
As a spread spectrum sequence of the communication system,the zero correlation zone (ZCZ)se-quence pairs set has superior performance,which can reduce or eliminate the multi-address interference and ef-fectively improve the performance of the system.Therefore,how to construct the ZCZ sequence pairs set with perfect or near perfect performance parameters is the focus of our research.Based on perfect sequence pairs and orthogonal matrix pairs,a method of constructing multiple mutually orthogonal ZCZ sequence pairs sets is pro-posed.The ZCZ sequence pairs are shifted and then extended by introducing the orthogonal matrix pairs.Final-ly,the multiple mutually orthogonal ZCZ sequence pairs sets are obtained,whose performance parameters are at or near the best.Compared with existing methods,the proposed method constructs more sets and has less strict requirement for sequence length.