【摘要】 针对鄂尔多斯盆地地区地震资料自身的特点,本文依据地震信号传播的特性和波场之间的差异,通过多域(多种线性变换域和频域)奇异值分解(SVD),然后提取目标信号的奇异值重构地震信号的方法,实现地震波场分离与去噪处理.与传统SVD地震波场分离与去噪技术相比较,该方法的目的性更强,直接针对感兴趣的地震信号成分进行SVD波场分离与去噪,在提高地震资料信噪比的同时,确保了信号的高保真度和分辨率;同时,避免了以往SVD技术应用空间狭窄,有效信号损失严重等缺陷性.从实际资料处理结果来看,取得了较好的效果.更多还原

【Abstract】 Under the characteristics of the Ordos Basin seismic data,in this paper,according to the propagation characteristics of seismic signal and the differences between wave fields,through the method with multi-domain(multi linear transformation domain and frequency domain) Singular Value Decomposition(SVD),and then extracting the singular value of the target signal to reconstruct the seismic signals,achieves seismic wave fields separation and denoising processing.Compare with the traditional technique of seismic wave field separation denoising via SVD,the purpose of the method is more direct in the interest seismic signal with wave field separation and denoising via SVD,which improve signal to noise ratio of seismic data,while ensure fidelity and resolution of signal.At the same time,avoid the defects that the using space is narrow and effective signal loss is serious with traditional SVD technology.From the results of actual data processing,this paper achieved good results.更多还原