一种Z_4线性码四相扩频序列的分析

Analysis of the 4-phase Spread spectrum Sequences Based on Z_4 Codes

本文首先分析了Z4 序列的平衡特性 ;然后详细讨论了Z4码四相扩频序列的广义奇相关的分布 ;并就相关峰值和相关均方值等相关特性 ,通过计算机仿真 ,将Z4码四相扩频序列与其它四相扩频序列进行比较。结果表明 ,Z4码四相扩频序列具有优良的相关特性 ,可作为DS/CDMA四相扩频序列的侯选。

This paper analyzes the balance property of Z 4 sequences and discusses in detail the correlation distribution of the generalized odd correlation of the 4 phase spread spectrum sequences based on Z 4 codes.It also compares the 4 phase spread spectrum sequences based on Z 4 codes with other 4 phase spread spectrum sequences with respect to the correlation properties such as the correlation peak and the correlation mean square.The results show that the 4 phase spread spectrum sequences based on Z 4 codes have good correlation properties.And it may be a candidate for the 4 phase spread spectrum sequences in DS/CDMA systems.