Non-Dyadic Curvelet Transform and Its Application in Seismic Noise Elimination
详细信息
- 责任者：Yuan Yanhua (Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Wang Yibo
- 刊名：Chinese Journal of Geophysics
- 出版年：2013
- 卷期：56(3)
- 关键词：去噪 ; denoising
- 页码：p.1023-1032
- 图表：illus., 11 refs.
- 分类号：1600
- issnNo：ISSN0001-5733
- isbnNo：CN11-2074/P
摘要
By analyzing the advantages and disadvantages of Curvelet transform in seismic processing,we propose a non-dyadic Curvelet transform for seismic noise elimination.There are two improvements:(1) The non-adaptive dyadic scale and angular decomposition has been updated to an adaptive non-dyadic controllable scale and angular decomposition,which provides a better representation of the primary characteristics of seismic data in terms of orientation and frequency.(2) The anisotropic analysis is introduced to the lowermost scale to improve the accuracy of low-frequency components processing.The synthetic and field data examples are used to validate the effectiveness of the proposed data analysis method.