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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 make up for the shortage of four-phase orthogonal sequence, the best four-phase orthogonal sequence is applied to ZCZ (Zero Correlation Zone) sequence. A method of constructing four-phase ZCZ sequence by interleaving is proposed. First select the appropriate shift sequence, interleaved to generate a longer period ZCZ sequence, and then use the orthogonal matrix to extend the sequence to obtain a new sequence set to achieve the best four-phase orthogonal sequence and orthogonal matrix The combination of. The method constructs a sequence with larger period and larger capacity, which can be better used in practical engineering.