论文部分内容阅读
地震资料处理中的噪音压制是将有效信号与噪音分离的过程,噪音压制技术有很多,但是对噪音压制过程中的质量控制和保幅性评价一直没有很好的方法。研究噪音压制后的信号分量与噪音分量的互相关函数,从中分离出噪音分量中可能包含的部分信号的互相关能量,得到在噪音压制过程中是否存在噪音压制过量而伤害到信号的保幅性评价方法。应用合成数据和实际地震资料验证了方法的有效性,该方法可以对噪音压制过程做相对量化的分析评价,适用于保幅、保真地震资料处理噪音压制过程的质量控制。
Noise suppression in seismic data processing is the process of separating the effective signal from the noise. There are many noise suppression techniques, but there is not a good way to evaluate the quality control and the amplitude-preserving property in the process of noise suppression. The cross-correlation function between the signal component and the noise component after noise suppression is studied, and the cross-correlation energy of some signals that may be contained in the noise component is separated from it to obtain the amplitude-preserving property of the signal which is impaired due to over-suppression of noise in the noise suppression process Evaluation method. The validity of the method is verified by using the synthetic data and the actual seismic data. This method can make relatively quantitative analysis and evaluation of the noise suppression process, and is suitable for the quality control of the noise suppression process of amplitude preservation and fidelity seismic data processing.