符号化时间序列分析

被引:10
作者
张雨
机构
[1] 南京工程学院机械工程系江苏南京
关键词
符号动力学; 时间序列; 信号处理; 二进制划分; 符号树; 香农熵;
D O I
暂无
中图分类号
TK401 [理论];
学科分类号
080703 ;
摘要
对于符号化时间分析方法,给出了已知的国外应用状况和文献出处.对如何将时间序列转化为符号序列,即信号符号化问题,通过最简单的二进制划分及其配套图形作了简要说明.给出了二进制划分下符号树结构及其Shannon熵计算方法,讨论了时延τ、符号集大小NS和树层数(符号序列长度)对Shannon熵等统计量的影响.叙述了符号序列编码方法和符号序列直方图的作用;提交了进行符号时间序列分析的计算机流程图.图5,参23.
引用
收藏
页码:75 / 79
页数:5
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