详细信息
利用小波分析计算离散动力系统的最大Lyapunov指数 ( EI收录)
CALCULATION OF THE LARGEST LYAPUNOV EXPONENT IN THE DISCRETE DYNAMICAL SYSTEM WITH WAVELET ANALYSIS
文献类型:期刊文献
中文题名:利用小波分析计算离散动力系统的最大Lyapunov指数
英文题名:CALCULATION OF THE LARGEST LYAPUNOV EXPONENT IN THE DISCRETE DYNAMICAL SYSTEM WITH WAVELET ANALYSIS
作者:刘海峰[1];赵艳艳[1];代正华[1];龚欣[1];于遵宏[1]
机构:[1]华东理工大学资源与环境工程学院,上海200237
年份:2001
卷号:50
期号:12
起止页码:2311
中文期刊名:物理学报
外文期刊名:Acta Physica Sinica
收录:CSTPCD;;EI(收录号:2004057983250);Scopus;北大核心:【北大核心2000】;CSCD:【CSCD2011_2012】;
基金:国家重点基础研究发展规划 (批准号 :G19990 2 2 10 3 );教育部骨干教师基金资助的课题~~
语种:中文
中文关键词:混沌信号;Lyapunvo指数;小波分析;离散动力系统
外文关键词:chaos; Lyapunov exponent; wavelet analysis
摘要:最大Lyapunov指数是诊断和描述动力系统混沌的重要参数 .在仿真计算的基础上 ,发现小尺度的小波变换模数的最大Lyapunov指数与离散动力系统本身是一致的 .同时仿真计算还表明 ,由于小尺度小波变换的高通滤波性质 。
The largest Lyapunov exponent is an important parameter of detecting and characterizing chaos produced from a dynamical system. Based on simulative calculation, it has been found that the largest Lyapunov exponent of the small-scale wavelet transform modulus of a discrete dynamical system is the same as the system's. At the same time, the calculated results show that calculating the largest Lyapunov exponent with the small-scale wavelet transform modulus can efficiently eliminate the effect of strong large-scale noiss because of the high-pass filtering characteristic of small-scale wavelet transform.
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