石油物探2012，Vol.51Issue(5)：446-450,5.DOI:10.3969/j.issn.1000-1441.2012.05.004
基于Hilbert-Huang变换的面波压制方法研究
Surface wave suppressing method based on Hilbert-Huang transform
摘要
Abstract
Hilbert-Huang transform is a new time-frequency method to process non-stationary signal, including empirical mode decomposition (EMD) and Hilbert transform. Surface wave mainly distributes in the low frequency components, so IMF component which merely contains surface wave was removed firstly. Then as for IMF component containing surface wave and effective wave, we processed them with Hilbert transform. In the time-frequency (TF) pass domain, we designed TF filter to remove surface wave. Finally, we carried out Hilbert-Huang inverse transform on the seismic record without surface wave after suppressing low-frequency components of surface wave and other components merely containing effective wave based on Hilbert-Huang inverse transform. The results based on actual seismic data indicate that this method can suppress surface waves effectively with less effective signal loss.关键词
Hilbert-Huang变换/经验模态分解/本征模态函数/面波Key words
Hilbert-Huang transform/ empirical mode decomposition/ intrinsic mode function/ surface wave分类
天文与地球科学引用本文复制引用
孔庆丰..基于Hilbert-Huang变换的面波压制方法研究[J].石油物探,2012,51(5):446-450,5.基金项目
国家高技术研究发展计划(863)项目"油藏综合地球物理技术"课题"多尺度地球物理资料井地联合反演技术"(2007AA060504)资助. （863）
