混沌扩频序列的多址性能分析  

Multiple access performance evaluation for the chaotic spreading sequence

作　　者：胡文立[1] 王玫[1] 

机构地区：[1]桂林电子工业学院通信与信息工程系,广西桂林541004

出　　处：《西安电子科技大学学报》2001年第6期715-718,共4页Journal of Xidian University

基　　金：广西青年科学基金资助项目 (桂科青 9912 0 11)

摘　　要：着重分析了混沌扩频序列在DS CDMA系统中的抗多址干扰性能 ,推导并定义了扩频通信系统的平均多址干扰指数W .通过与m序列及Gold序列进行比较 ,发现混沌扩频序列的平均多址干扰指数比它们更大 ,这表明混沌扩频序列的相关性能优于传统的伪随机扩频序列 .文中对The multiple access performance evaluation for chaotic spreading sequences is analyzed theoretically. The W index as the standard to judge the performance of chaotic sequences and m sequence and Gold sequence is defined. By using W index, the performance of four sequences is compared. The simulation results show that the sequences generated by the Chebyshev map is the best.

关 键 词：多址干扰 混沌扩频序列 DS-CDMA系统 码分多址 

分 类 号：TN914.53[电子电信—通信与信息系统]