【摘要】 对得到信噪比和分辨率较高的地震记录,做好地震资料的地质构造解释十分必要,而压制面波是提高信噪比和分辨率的一项重要技术,本文提出用S-变换来压制面波的方法,该方法是将时间域地震信号变换到时频域,在时频域去除面波,再变换回时间域,其结果是滤掉面波的地震信号。针对这种技术,给出实施流程,并将其应用于含有面波的理论模型和实际资料中。理论模型和实际应用效果表明,该方法能有效地压制面波,并保持了地震记录的其他特征,其结果不会出现空间假频的现象;同时,还具有适应性强、效果好等特点。更多还原

【Abstract】 Seismic sections with high signal-to-noise ratio and resolution must be obtained to put geologic structure interpretation. Surface wave suppression is an important technique to improve signal-to-noise ratio and resolution. The paper shows a surface wave suppression method using S-Transform which transforms seismic signal from time domain to time-frequency domain. After eliminated surface wave in time-frequency domain,it is back to time domain to attain seismic signal and cut down surface wave. Flow chart of surface wave suppression is given and according to the technique,the authors put it into model and actual data. The results show that the method suppresses surface wave and preserves other characters of seismic data effectively,without the phenomena of spatial aliasing,and the results have good adaptability and effect.更多还原