【摘要】 通过对多种连续小波基的平稳序列时频分析,提出经验模态的非平稳序列的时频分析方法,并在地震资料处理解释应用中作探索性试验。试验结果表明:对地震记录道长为5 s和2 ms采样资料,经验模态分解后可获得6—7个固有模态函数单分量,分解的第一个分量C1(t)具有较宽的频率成分,可作为地震属性的主分量。更多还原

【Abstract】 In this article,based on the continual wavelet base time-frequency analysis method of stationary series,an time-frequency analysis method of non-stationary series with empirical mode decomposition is presented.And an interpretation of seismic data processing applications was tentatively tested.The results show that from a seismic trace of 5 seconds length and 2 ms sampling,6—7 IMF single components can be obtained after decomposed,the first component C₁（t） of the decomposition,which is with wide frequency components,can be used as the principal component analysis of seismic data.更多还原