摘要
为了弥补四相正交序列周期短的缺陷,将最佳四相正交序列应用于零相关区(ZCZ,Zero Correlation Zone)序列中,提出一种用交织法构建四相ZCZ序列的方法。首先选择合适的移位序列,经交织变换生成具有更长周期的ZCZ序列,再用正交矩阵将该序列进行扩展而得到新的序列集,实现了最佳四相正交序列和正交矩阵的结合。该方法构造的序列具有更大的周期和较大的容量,从而可以更好地在实际工程中加以利用。
In order to compensate the defect of short cycle on quadriphase orthogonal sequence, a method for construction of quadriphase zero correlation zone（ZCZ）sequence based on interleaved technique is proposed. For the best quadriphase orthogonal sequence in the ZCZ sequence, a new ZCZ sequence with longer period is synthesized through intertwined transform with the proper shift sequence, then this sequence is extended by orthogonal matrix, thus to get a new set of sequences and achieve the combination of the best quadriph^se orthogonal sequences and orthogonal matrix. Experiment indicates that the sequence constructed by this method, with longer period and larger capacity, could be fairly applied in the practical engineering.
出处
《通信技术》
2012年第9期17-20,共4页
Communications Technology
关键词
扩频序列
交织方法
四相ZCZ序列
spreading sequence
interleaved technique
quadriphase ZCZ sequences
