【摘要】 根据时频分析的思想,引入全新时频分析方法——子波分解。子波分解可将地震道分解成不同主频、不同时间的子波集合,从而实现地震道在时、频率域内的精确分解。分解后的子波可以按特定频率和时间深度重构出多种地震道。采用树型模型对地震道实现子波分解,全子波重构道与原始地震道的一致性验证了分解方法的正确性。更多还原

【Abstract】 According to the time frequency analysis,the paper introduce a new sub-band approach-seismic wavelet decomposition.Seismic trace can be decomposed into a series of seismic wavelets with different frequency and time,and consequently achieve the accuracy decomposition of seismic trace in time and frequency domain.The decomposed seismic wavelets are reconstructed into different trace with specific frequency and time depth.The paper uses the tree-decomposition model to achieve seismic wavelet decomposition.Little difference between the reconstruction of the whole seismic wavelet and the original seismic trace proves the correctness of decomposition.更多还原