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地震资料分辨率和信噪比的高低直接影响到构造解释、储层反演等地球物理方法的应用效果。由于S变换的小波函数是以固定的趋势随频率变化,缺乏灵活性,在实际应用中效果也不够理想。而广义S变换对小波基函数进行适当的调整,来达到相应分辨率,以适应地震资料的处理要求。将理论模型取得的认识用于实际资料处理,从增强弱信号能量、去除噪音等方面,展示该方法对实际资料的处理效果。结果表明,该方法实用性强,可以有效改善地震资料品质,能够较好的用于地震资料处理。下面就结合实例,介绍广义S变换在处理叠后地震资料中的作用。
Seismic data resolution and signal to noise ratio directly affect the application of tectonic interpretation, reservoir inversion and other geophysical methods. Since the S transform wavelet function is a fixed trend with the frequency changes, the lack of flexibility in the practical application of the effect is not ideal. The generalized S transform to the wavelet basis function properly adjusted to achieve the corresponding resolution to meet the seismic data processing requirements. The knowledge obtained from the theoretical model is used for actual data processing, and the processing effect of the method on actual data is demonstrated from the aspects of enhancing weak signal energy and removing noise. The results show that the proposed method is practicable and can effectively improve the seismic data quality and can be applied to seismic data processing well. The following combined with examples, introduce the generalized S transform in dealing with post-stack seismic data.