CAJ | 학술논문

面波干扰的抑制是陆上地震资料处理的主要问题之一.本文根据炮集记录中面波与反射波主要能量在小波域分布区域的不同,以及面波干扰的影响随炮检距变化等特点,提出了一种具有时变、空变特性的自适应面波衰减方法.文中将该方法用于模型及实际炮集资料的处理,并与常用的高通滤波方法进行对比,结果表明,该方法在衰减面波干扰的同时,能更好地保持反射波的振幅及相位信息.
면파간우적억제시륙상지진자료처리적주요문제지일.본문근거포집기록중면파여반사파주요능량재소파역분포구역적불동,이급면파간우적영향수포검거변화등특점,제출료일충구유시변、공변특성적자괄응면파쇠감방법.문중장해방법용우모형급실제포집자료적처리,병여상용적고통려파방법진행대비,결과표명,해방법재쇠감면파간우적동시,능경호지보지반사파적진폭급상위신식.
Ground roll attenuation is one of the important problems in land seismic data processing. According to the distribution characteristics of ground roll and reflection signal in wavelet domain and the characteristic of ground roll changing with the offset,an adaptive ground roll attenuation method is presented,which has time-variable and space-variable characteristic. The method has been applied to the synthetic and real data,and compared with high-pass filtering methods. The processing and comparison results show that the proposed method is effective in attenuating ground-roll,at the same time,it can well preserve the amplitude and phase information of reflection wave.