摘要
介绍了希尔伯特-黄变换(HHT)这一非线性、非平稳信号处理方法,并利用HHT处理了地震工程中常用的ElCentro地震波,得到了该信号的Hilbert谱、边际谱和能量谱,提取了该信号的主要动力特性,并与该信号的Fourier分析结果进行了对比,显示出HHT这一方法的优越性.
HHT is a new method to deal with non- linear and non - stationary data. E1 Centro earthquake wave is analyzed by HHT. Through the way, Hilbert spectrum, marginal spectrum are got and dynamic property is extracted. The comparison between HHT spectrum is made and the superiority of HHT is demonstrated. spectrum and energy spectrum and Fourier
出处
《福州大学学报(自然科学版)》
CAS
CSCD
北大核心
2006年第2期260-264,共5页
Journal of Fuzhou University(Natural Science Edition)
基金
教育部博士点专项科研基金资助项目(20040386004)
关键词
希尔伯特-黄变换
经验模态分解
固有模态函数
地震信号
Hilbert- Huang transform
empirical mode decomposition
intrinsic mode function
seismic signal