张雪锋,刘伟东,姜文

• 1:西安邮电大学网络空间安全学院
• 2:国家计算机网络应急技术处理协调中心

摘要(Abstract)：

针对现有一维复合混沌系统存在的混沌区间不连续、混沌区间小、序列随机性差以及初值敏感性低等问题，提出一种改进的一维复合混沌系统。该系统使用Logistic映射和Sine映射作为种子映射，通过扩展系统参数对种子映射进行随机地复合和组合，然后取模得到混沌映射。对该复合混沌系统的李雅普诺夫(Lyapunov)指数、分岔图、序列随机性、相关系数、平衡度、初值敏感性和位变化率等性能指标进行仿真，结果表明，与相关的一维复合混沌系统相比，提出混沌系统混沌区间连续无断点、混沌区间较大、生成序列随机性能较好，初值敏感性较高，表现出更为复杂的混沌特性。

关键词(KeyWords)： 复合混沌系统;Logistic映射;Sine映射;相关系数

Abstract:

Keywords:

基金项目(Foundation): 陕西省自然科学基础研究计划项目(2021JQ-722)

作者(Author): 张雪锋,刘伟东,姜文

DOI: 10.13682/j.issn.2095-6533.2022.01.007

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