Abstract:

As a spread spectrum sequence of the communication system, the zero correlation zone (ZCZ) sequence pairs set has superior performance, which can reduce or eliminate the multi-address interference and effectively 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 proposed. The ZCZ sequence pairs are shifted and then extended by introducing the orthogonal matrix pairs. Finally, 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.