应用地球物理（英文版）
應用地毬物理（英文版）
응용지구물리（영문판）
APPLIED GEOPHYSICS
2010年
4期
325-335
,共11页
郑静静%印兴耀%张广智%武国虎%张作胜
鄭靜靜%印興耀%張廣智%武國虎%張作勝
정정정%인흥요%장엄지%무국호%장작성
Second generation curvelet transform%multiscale%strong directional characteristics%surface wave removal
In this paper, we develop a new and effective multiple scale and strongly directional method for identifying and suppressing ground roll based on the second generation curvelet transform. Making the best use of the curvelet transform's strong local directional characteristics, seismic frequency bands are transformed into scale data with and without noise. Since surface waves and primary reflected waves have less overlap in the curvelet domain, we can effectively identify and separate noise. Applying this method to prestack seismic data can successfully remove surface waves and, at the same time, protect the reflected events well, particularly in the low-frequency band. This indicates that the method described in this paper is an effective and amplitude-preserving method.
