基于Logistic-Sine-Cosine映射的混沌跳频序列构造方法及其性能分析
Construction method and performance analysis of chaotic frequency-hopping sequences based on Logistic-Sine-Cosine mapping
曹春杰 1王映麟 1孙旸 1陶虹妃 1杨皓凝 1师景铖 1戴俊浩 1孙敬张1
作者信息
- 1. 海南大学网络空间安全学院(密码学院),海南 海口 570228
- 折叠
摘要
为了解决目前混沌跳频序列的产生主要限于低维混沌映射,且存在着混沌行为有限、混沌区间不连续等问题,提出了一种新的混沌跳频序列构造方法.首先使用余弦变换法结合Logistic、Sine映射生成新的Logistic-Sine-Cosine混沌映射;然后采用中间多比特抽取法将上述映射产生的序列量化为跳频序列;最后通过实验证明,该混沌跳频序列在保持良好的平衡性、汉明相关性的前提下,有效提高了序列的随机性和复杂度,可以加强通信过程中的抗预测性和抗干扰性.
Abstract
In order to solve the problems of low dimensional chaotic mapping,limited chaotic behavior,and discontinu-ous chaotic interval,a new construction method of chaotic frequency-hopping sequence was proposed.First,a new Logistics-Sine-Cosine chaotic map was generated by Cosine transformation method combined with Logistic and Sine mapping.Then,the intermediate multi-bit extraction method was used to quantify the sequence generated by the map-ping as a frequency-hopping sequence.Finally,experiments show that the chaotic frequency-hopping sequence can effec-tively improve the randomness and complexity of the sequence under the premise of maintaining good balance and Ham-ming correlation,and can strengthen the anti-prediction and anti-interference in the communication process.
关键词
混沌/跳频序列/混沌映射/汉明相关性Key words
chaos/frequency-hopping sequence/chaos map/hamming correlation引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据