数字化混沌系统的仿真研究  

Simulation Research on Digital Chaotic Systems

作　　者：周志波[1] 周童[1] 王进祥[1] 

机构地区：[1]哈尔滨工业大学微电子中心,黑龙江哈尔滨150001

出　　处：《微电子学与计算机》2009年第5期163-166,171,共5页Microelectronics & Computer

摘　　要：通过计算机仿真得到了两个数字化混沌系统在不同精度时的周期.通过对最大周期的统计分析,得到了一组比较有规律、有意义的统计量.文中将这些统计量的均值称为"最大周期因子",它反映了数字化混沌系统最大周期与整个状态空间的比值.利用最大周期因子,可以大致计算在任意精度时混沌系统所能达到的最大周期.Periodicities of two precision-limited chaotic maps for different number of precision bits are obtained from computer simulation.A set of statistical characteristics have a strong inherent law and to be interesting are found by statistical analyzing the maximum periodicities.The mean of these statistical characteristics is named ＂Max Periodicity Factor＂,which gives a percentage of the periodicity length occupying the whole state space for a digital chaotic system.The approximate max periodicity of a chaotic system can be derived from the Max Periodicity Factor for any precision.

关 键 词：混沌系统 有限精度 混沌周期 

分 类 号：TN914.42[电子电信—通信与信息系统]