桂林电子科技大学学报2016，Vol.36Issue(5)：355-359,5.
一种高复杂性的混沌序列
A new chaotic sequence with high complexity
摘要
Abstract
The sequence generated by the traditional single chaotic map has the problem of simple initial iteration,the param-eter interval is narrow and low complexity,a new chaotic sequence with high complexity is proposed.The improved one-di-mensional chaotic Logistic and Chebyshev mapping is multiplied,chaotic mapped by ordinary second-order or cosine map-ping relationship is transformed into the relationship between the product of second-order with cosine,chaotic mapping ex-pression by the original first order difference becomes second order difference,thus increases the complexity of chaotic sys-tem.The nonlinear dynamics characteristics and chaotic sequence are simulated by computer.The results show that the new chaotic sequence has more complex chaotic attractors.It has stronger initial value sensitivity and randomness,and it also has higher approximate entropy value and chaotic sequence complexity.This new sequence can be widely applied in chaotic se-cure communications and other high requirements for information security fields.关键词
混沌序列/改进型Logistic映射/Chebyshev映射/混沌吸引子/近似熵Key words
chaotic sequence/improved Logistic mapping/Chebyshev mapping/chaotic attractor/approximate entropy分类
信息技术与安全科学引用本文复制引用
陈紫强,舒亮,谢跃雷..一种高复杂性的混沌序列[J].桂林电子科技大学学报,2016,36(5):355-359,5.基金项目
国家自然科学基金(41201479) （41201479）
广西自然科学基金(2014jjAA70068) （2014jjAA70068）
广西教育厅重点项目(ZD2014052) （ZD2014052）
