【摘要】 由于原始地震反射数据含有大量噪声,因此地震数据的降噪处理是十分重要的,而面波的压制是陆上地震资料降噪处理的主要问题之一。这里根据共炮点记录中面波与反射波主要能量在时间～尺度域的分布不同,以及面波的频率特性等特点,提出了一种基于时间～尺度域的面波衰减方法。将该方法用于实际炮集资料的处理,并与常用的F-K滤波方法进行对比,结果表明,该方法在衰减面波干扰的同时,能更好地保护反射波,并且对于信噪比较低的浅层反射信号能够取得较好的效果。更多还原

【Abstract】 The original seismic signal contains a lot of noise,so surface wave attenuation is one of the im-portant problems in land seismic data processing.According to the distribution characteristics of surface wave and reflection signal in time-scale domain and the frequency characteristics of surface wave,attenuation of surface wave via continuous wavelet transform is presented.The method has been applied to the real data,and compared with F-K filtering method.The result shows that the proposed method is effective which can well preserve reflection wave and get better result for low SNR of shallow seismic reflection signals.更多还原