基于Chebyshev映射的四相扩频序列  

Quadriphase Spread Spectrum Sequences Based on Chebyshev Map

作　　者：蔡国权[1] 周利莉 宋国文[2] 

机构地区：[1]郑州信息工程学院通信工程系,郑州450002 [2]西南电子电信技术研究所上海分所,上海200434

出　　处：《电子学报》1999年第9期74-77,共4页Acta Electronica Sinica

摘　　要：本文基于 Ｃｈｅｂｙｓｈｅｖ 映射，提出了一种四相扩频序列的设计方法，分析了此类四相扩频序列的广义奇相关的相关分布，并就相关峰值、相关均方值等相关特性，将此类四相扩频序列与其它四相扩频序列进行了比较分析．理论分析与计算机仿真结果表明：本文设计构造的四相扩频序列，具有优良的相关特性，在 Ｃ Ｄ Ｍ Ａ 系统中具有很好的应用前景．This paper proposes a new method for designing quadriphase spread spectrum sequences,which is based on Chebyshev Map.The correlation distribution of the generalized odd correlation of such sequences is analyzed.And the sequences is compared with other quadriphase spread spectrum sequences with respect to the correlation properties such as the correlation peak and the correlation mean square.Theoretical analyses and the results of simulation show that the quadriphase spread spectrum sequences generated by the method proposed in the paper has good correlation properties,and it will be used in CDMA in future.

关 键 词：CHEBYSHEV映射 四相扩频序列 DS/CDMA 

分 类 号：TN914.4[电子电信—通信与信息系统]