摘要
阐述了时间延迟对相空间重构的影响 ,研究了平均位移法选择时间延迟的原理 ,并通过分析相空间扩展的几何意义 ,对平均位移法进行了改进 ;利用典型数据对两种方法进行测试 ,结果表明 ,改进后的方法不仅具有更明确的物理意义 ,而且可以更好地选择时间延迟。
In the paper, the influence of time delay in phase space reconstruction is analysed and the method of average displacement to choose proper time delay is examined. By analyzing the geometrical concept of phase space expansion, some improvements are made in the method. The original method and the improved method are both tested with several representative data. The results show that, the improved method presented in the paper not only has clearer physical meaning, but also can be used better to choose proper time delay.
出处
《振动工程学报》
EI
CSCD
北大核心
2001年第2期242-244,共3页
Journal of Vibration Engineering
基金
国家自然科学基金资助项目 (编号 :5 9775 0 2 5 )
