| 一种新的混沌序列生成方式 |
| |
| 引用本文： | 张巍,胡汉平,李德华.一种新的混沌序列生成方式[J].华中科技大学学报(自然科学版),2001,29(11):64-66. |
| |
| 作者姓名： | 张巍 胡汉平 李德华 |
| |
| 作者单位： | 华中科技大学图像识别与人工智能研究所, |
| |
| 基金项目： | 国家自然科学基金资助项目 ( 692 75 0 2 2 )，教育部高等学校骨干教师资助计划资助项目，湖北省重点科技
研究项目基金资助项目 |
| |
| 摘 要： | 提出了一种通过构造变参数复合混沌系统来实现有限精度混沌系统的方法。考察了这种方法对混沌信号的功率谱特性和李雅普诺夫指数的影响。研究表明，利用该方法可以方便地生成大量具有良好自相关特性和互相关特性的混沌序列。
|
| 关 键 词： | 混沌伪随机序列 变参数 复合系统 相关特性 混沌信号 功率谱 李雅普诺夫指数 |
| 文章编号： | 1000-8616(2001)11-0064-03 |
| 修稿时间： | 2001年3月15日 |
A New Approach to Generate Chaotic Sequences |
| |
| Zhang Wei,Hu Hanping,Li Dehua.A New Approach to Generate Chaotic Sequences[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2001,29(11):64-66. |
| |
| Authors: | Zhang Wei Hu Hanping Li Dehua |
| |
| Institution: | Zhang Wei Hu Hanping Li Dehua |
| |
| Abstract: | This paper presents an approach to realize finite precision chaotic systems by constructing a variable parameter compound chaotic system. By setting parameter list and switch condition, a discrete chaotic system can be transformed into the variable parameter chaotic system. Based on this, the variable parameter compound chaotic system can be constructed by coupling two or more than two variable parameter chaotic systems. How to set up a variable parameter chaotic system with a logistic map is demonstrated. The way to establish a variable parameter compound chaotic system is illustrated by compounding a parabola map and a tent map. It is shown that a great number of chaotic sequences with wonderful correlation properties can be generated conveniently by this method. Compared with the original chaotic systems, the sequences generated by the compound system derived from them have more smooth power spectra and larger lyapunov index. |
| |
| Keywords: | chaotic pseudo random sequences variable parameter compound system correlation property |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
