摘要
该文从扩频通信对扩频码序列的要求出发,提出采用广义映射产生混沌数字序列的思路。通过对广义映射混沌数字序列相关性和平衡性的分析,给出一种改进的广义映射混沌数字序列生成方法。计算机模拟分析表明,使用该文方法生成的混沌序列具有良好的平衡性和保密性,更适合在码分多址通信中应用。
In view of the performance of the spreading sequences for spread-spectrum communication system, a novel method of obtaining chaotic digital sequences based on the extended chaotic map is given in this paper. The correlation and balance performances of the new sequences are analysed, furthermore, an advanced method of generating the digital sequences is proposed, in order to get excellent balance performance. The simulation results show that the chaotic spreading sequences generated by the advanced method possess excellent performance and security, specially for CDMA communication system.
出处
《电子与信息学报》
EI
CSCD
北大核心
2006年第7期1255-1257,共3页
Journal of Electronics & Information Technology
基金
河南省杰出青年科学基金(0112001600)资助课题
关键词
扩频通信
广义映射
扩频序列
相关性
平衡性
Spread-spectrum communication, Extended chaotic map, Spreading sequences, Correlation performance, Balance performance
