线性相干噪声及其消除方法

LINEAR COHERENT NOISES AND THEIR ELIMINATION

地矿部石油物探研究所

本文简单地讨论了两种重要的线性相干噪声——记录上的折射鸣震和叠加剖面上的散射波——的形成和特点。根据它们的线性相干性,提出了一种消除线性相干波场的新方法。它既能有效地压制线性相干噪声,又能保证处理后资料的横向分辨力不受影响。最后用两种实际资料证明了这种方法的有效性。

In this paper, two of the important linear coherent noises, the refraction reverberation on the seismogram and the scattering waves on stacked section, their generation and their features, were succinctly discussed. According to their coherence, a new technique of eliminating the linear coherent wavefield were suggested. By use of this technique recommended, not only the linear coherent noises could be suppressed effectively, but also the lateral resolution of the processed data could be maintained. The validity of this technique has been proved by applying it to the real data.