Amplitude Preservation Theoretical Analysis of Radon Transforms De-Noising Method
详细信息
- 责任者：Xue Zhao (Laboratory of Marine Geology NDE ; Tongji University ; Shanghai 200092 ; China) ; Dong Liangguo
- 刊名：Oil Geophysical Prospecting
- 出版年：2012
- 卷期：47(6)
- 关键词：地震勘探 ; seismic exploration ; 去噪 ; denoising
- 页码：p.858-867
- 图表：illus., 17 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
In this paper,the way of amplitude preservation theoretical analysis of the wave field decomposition class denoising methods is provided,as well as evaluation standards.Then,taking removing multiples by Radon transform as a case,the authors make a detailed analysis of the signal operation process for several implementations of Radon transform,and a theoretical amplitude preservation assessment.The following observations from theoretical analysis and numerical experiments are obtained: 1)conventional Radon transform does not meet the requirements of amplitude-preserved processing; 2) least squares Radon transform operator satisfies amplitude preservation requirements,but signal resolution in transform domain still need to be improved; and 3) under the approximation to the “standard event” assumption,high resolution Radon transform denoising method can be considered to be amplitude-preserved in a certain precision range.