An Improved Matching Method Based on L1-Norm for Multiple Elimination and Application in Deepwater Basin of South China Sea

详细信息   

• 责任者：Wu Yinting (Institute of Geology and Geophysics ; China Academy of Sciences ; Beijing 100029 ; China) ; Liu Yike
• 刊名：Chinese Journal of Geophysics
• 出版年：2012
• 卷期：55(3)
• 关键词：地震滤波 ; seismic filtering ; 深水环境 ; deep-water environment ; 南海 ; South China Sea
• 页码：p.1007-1016
• 图表：4 illus., 28 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

This paper puts forward an improved matching method for multiple elimination based on L1-norm without big value constraining condition,and makes use of Hilbert transformation and derivation to get phase angle adjustment for different degrees. This improved method theoretically overcomes the big value condition of L2-norm, and ameliorates the orthogonal constraint condition under general L1-norm through multi-original channels and multi-transformed multiples. The results of Pluto model and field data from deepwater basin of South China Sea declare the improved L1-norm matching method is superior to general L2-norm, general L1-norm matching methods.