摘要
基于波动理论,可将地震波场分为入射波场和散射波场。在一定的假设基础上,通过波阻抗差函数可把入射波场和散射波场联系起来。利用波阻抗差函数,可对地震数据中的散射波场进行预测,进而达到去除散射噪声的目的。经正演模型和对实际数据的应用,显示了该方法对衰减近地表散射噪声的优越性。
Based on wave theory,seismic field can be divided into incident wave field and scattered wave field. The incident wave field can be related with the scattered wave field through wave impedance difference function on appropriate assumptions. The scattered wave field in seismic data can be forecasted by using wave impedance difference function so as to reach the intention to eliminate scattered noise. Through the forward modeling and application of field data,this method shows the priority on attenuating near--surface scattered noise.
出处
《世界地质》
CAS
CSCD
2010年第2期310-313,322,共5页
World Geology
基金
国家高技术研究发展计划(863计划课题)"金属矿多波地震处理解释技术"(2006AA06Z108)
关键词
散射波场
波阻抗差函数
噪声衰减
信噪比
scattered wavefield
wave impedance difference function
noise attenuation
signal--to--noise ratio
