摘要
基于Logistic映射,根据返回映射和符号动力学的思想产生混沌跳频码。与已有的方法相比,产生的跳频码具有良好的性能,且抗预测和破译的能力较强。在此基础上,设计并实现了混沌跳频CSK通信系统和混沌跳频OFDM通信系统,对误码率的理论分析和仿真结果表明,该系统的抗噪声和多径干扰的能力较强。
Based on Logistic map, chaotic frequency hopping codes were produced by using return map and the idea of symbolic dynamics. The obtained codes have better performance compared to the conventional ones and are immune to prediction and interception. Furthermore, chaotic frequency hopping CSK and OFDM communication systems were designed and realized with the proposed codes. Theoretical analysis and simulation results show that the systems possess good behavior in anti-jamming and reduction of both noise and multipath interference.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2008年第1期211-218,共8页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金项目(60572025)
教育部新世纪优秀人才基金项目(NCET-04-0813
重点项目:105137)
广东省自然科学基金项目(05006506
07006496
04205783)
关键词
通信技术
混沌
跳频码
跳频通信系统
返回映射
误码率
communications
chaos
frequency hopping code
frequency hopping communication system
return map
BER
