| 基于可扩展精度的Logistic混沌随机序列的并行计算方法 |
| |
| 引用本文： | 刘嘉辉,张宏莉.基于可扩展精度的Logistic混沌随机序列的并行计算方法[J].中国科学技术大学学报,2011,41(9):837-846. |
| |
| 作者姓名： | 刘嘉辉 张宏莉 |
| |
| 作者单位： | 哈尔滨工业大学计算机科学与技术学院,黑龙江哈尔滨,150001 |
| |
| 基金项目： | 中国高技术研究发展(863)计划(2010AA012504); 黑龙江省教育厅2011年度海外学人项目(1251H018)资助 |
| |
| 摘 要： | 在有限计算精度下的混沌特性退化问题一直是困扰数字混沌系统的关键问题.采用可扩展精度并行方法计算Logistic映射,对混沌函数进行分步计算,利用动态数组保存计算结果.基于可扩展精度计算混沌,打破了计算机内有限精度的限制,用户可以自由指定计算精度.实验结果表明,基于可扩展精度的混沌随机数列,随着精度的增加,映射空间扩大,...
|
| 关 键 词： | 可扩展精度 随机数列 并行算法 Logistic映射 |
A parallel computing method of chaotic random sequence based on Logistic map with scalable precision |
| |
| LIU Jiahu,ZHANG Hongli.A parallel computing method of chaotic random sequence based on Logistic map with scalable precision[J].Journal of University of Science and Technology of China,2011,41(9):837-846. |
| |
| Authors: | LIU Jiahu ZHANG Hongli |
| |
| Institution: | LIU Jiahui,ZHANG Hongli(School of Computer Science and Technology,Harbin Institute of Technology,Harbin 150001,China) |
| |
| Abstract: | The dynamical degradation of chaos with finite computing precision always troubles digital chaotic systems.A parallel method for computing the Logistic map with scalable precision was introduced;in which chaotic map was divided into several parts for computing,and the results were placed in the dynamical array.Computing chaotic map with scalable precision breaks limit of computer finite precision,allowing the user to set the computing precision freely.The experimental results show that the higher the precis... |
| |
| Keywords: | scalable precision random sequence parallel algorithm Logistic map |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
