摘要
将混沌映射 ICMIC应用于 CDMA系统 ,产生相应的 ICMIC二元扩频序列 ,并对系统的抗干扰性能以及系统容量进行了分析。分析表明 :与 L ogistic周期混沌扩频序列、传统的 EOE- Gold序列相比 ,该扩频序列具有良好的自相关与互相关特性 ,可以有效地抑制多径干扰和多址干扰 ,并使扩频通信系统的信道容量得到提高 ,对
Binary spreading sequences generated from ICMIC chaotic map are analyzed. The analysis shows that they have good autocorrelation and cr osscorrelati on characteristics. Compared with spreading sequences generated from Logistic ma p and EOE-Gold sequences, ICMIC binary spreading sequences can efficiently redu ce the multiple path and multiple access interference and increase th e channel capability of spreading communication system. The spreading sequences have great influences in performance improvement of CDMA system.
出处
《数据采集与处理》
CSCD
2001年第3期348-352,共5页
Journal of Data Acquisition and Processing
基金
国家自然科学基金重点 (编号 :6973 5 1 0 1 )资助项目
关键词
混沌
信道容量
码分多址移动通信
扩频序列
ICMIC
chaos
correlation
multiple path interference
multiple access interference
channel capability
