Multiple Matching Attenuation Based on Curvelet Domain Extended Filtering  

作　　者：HUA Qingfeng CHEN Zhang HE Huili TAN Jun CHEN Haifeng LI Guanbao SONG Peng ZHAO Bo JIANG Xiuping 

机构地区：[1]Key Laboratory of Marine Geology and Metallogeny,First Institute of Oceanography,Ministry of Natural Resources,Qingdao 266061,China [2]Laboratory for Marine Mineral Resources,Qingdao Marine Science and Technology Center,Qingdao 266237,China [3]College of Marine Geoscience,Ocean University of China,Qingdao 266100,China [4]BGP Inc.,China National Petroleum Corporation,Zhuozhou 072750,China [5]Key Laboratory of Submarine Geosciences and Prospecting Techniques,Ministry of Education,Qingdao 266100,China

出　　处：《Journal of Ocean University of China》2024年第4期924-932,共9页中国海洋大学学报（英文版）

基　　金：funded by the Wenhai Program of the ST Fund of Laoshan Laboratory (No.202204803);the National Natural Science Foundation of China (Nos.42074138,42206195);the National Key R&D Program of China (No.2022YFC2803501);the Research Project of the China National Petroleum Corporation (No.2021ZG02)。

摘　　要：The paper develops a multiple matching attenuation method based on extended filtering in the curvelet domain,which combines the traditional Wiener filtering method with the matching attenuation method in curvelet domain.Firstly,the method uses the predicted multiple data to generate the Hilbert transform records,time derivative records and time derivative records of Hilbert transform.Then,the above records are transformed into the curvelet domain and multiple matching attenuation based on least squares extended filtering is performed.Finally,the attenuation results are transformed back into the time-space domain.Tests on the model data and field data show that the method proposed in the paper effectively suppress the multiples while preserving the primaries well.Furthermore,it has higher accuracy in eliminating multiple reflections,which is more suitable for the multiple attenuation tasks in the areas with complex structures compared to the time-space domain extended filtering method and the conventional curvelet transform method.

关 键 词：multiple matching attenuation curvelet domain extended filtering 

分 类 号：P631.46[天文地球—地质矿产勘探]