吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (3): 962-970.doi: 10.13278/j.cnki.jjuese.201503305
• 地球探测与信息技术 • 上一篇
勾福岩1, 刘财1, 刘洋1, 王博1,2, 冯晅1
Gou Fuyan1, Liu Cai1, Liu Yang1, Wang Bo1,2, Feng Xuan1
摘要:
在海上地震资料采集过程中,涌浪噪声是一种常见的噪声干扰,这类噪声一般表现为低频、强能量、长周期,使用一般的方法很难在去噪的同时达到信号保真的效果。笔者针对该噪声的特征,选取了基于波动方程炮检距连续(offset continuation,OC)算子的OC-Seislet变换方法进行消噪处理;该方法应用OC算子来表征复杂波场,对含噪声数据进行压缩,在变换域通过软阈值处理实现信噪分离,再将结果反变换到数据域,从而达到去除涌浪噪声的目的。通过对模型数据和实际数据的处理,验证了OC-Seislet变换方法能够在去除原始数据中涌浪噪声的同时,最大程度地保护复杂构造下的地震波信息。
中图分类号:
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