基于脊波变换的地震信号去噪方法

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英文篇名：Seismic signal denoising method based on Ridgelet transform 中文刊名：天津工程师范学院学报 英文刊名：Journal of Tianjin University of Technology and Education 作者：吴爱弟 ; 王海珍 英文作者：WU Ai-di ; WANG Hai-zhen(School of Mathematics and Physics ; Tianjin University of Technology and Education ; Tianjin 300222 ; China) 中文关键词：小波变换 ; 脊波变换 ; 地震信号去噪 英文关键词：wavelet transform ; Ridgelet transform ; seismic denoising 出版日期：2009-03-28 机构：天津工程师范学院理学院; 年：2009 期：01 出版单位：天津工程师范学院学报

摘要

Ridgelet变换是信号的一种新的多尺度表示方法,它特别适合于具有线奇异性的二维信号的描述。将小波的自适应阈值去噪方法扩展到Ridgelet域中,应用Ridgelet变换,采用自适应阈值对地震信号进行去噪处理。数值实验结果表明,Ridgelet变换在地震信号去噪方面优于小波变换。
Ridgelet transform is a new multi-resolution representation of signal.It is especially suitable for describing the signals with linear singularities.The adaptive wavelet thresholding denoising method used in Wavelet domain is extended to Ridgelet domain.Ridgelet transform is applied to seismic signal denoising by adaptive thresholding.Experiment results show that Ridgelet transform is more efective than the wavelet transform in seismic signal denoising.

引文

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