Hilbert-Huang transform and wavelet analysis of time history signal

• 作 者: 石春香 罗奇峰
• 机 构: Reduction, Tongji University, Shanghai 200092, China,Reduction, Tongji University, Shanghai 200092,
• 出 处: Acta Seismologica Sinica(English Edition)
• 发表日期: 2003年04期
• 关键词: Hilbert-Huang transform wavelet analysis mother wavelet intrinsic mode functions

The brief theories of wavelet analysis and Hilbert-Huang transform (HHT) are introduced firstly in the present paper. Then several signal data were analyzed by using wavelet and HHT methods, respectively. The comparison shows that HHT is not only an ef