|
|||||
|
|
| 用过采样小波变换提高地震资料分辨率 | |
| 引用本文： | 刘培体,刘喜武,年静波. 用过采样小波变换提高地震资料分辨率[J]. 石油物探, 2003, 42(4): 513-516 |
| 作者姓名： | 刘培体 刘喜武 年静波 |
| 作者单位： | 1. 中国石化胜利油田物探研究院,山东,东营,257000 2. 中国科学院地质与地球物理研究所,北京,100101;中国科学院研究生院,北京,100039 3. 中国石油大庆油田勘探开发研究院,黑龙江,大庆,163712;中国石油勘探开发研究院,北京,100083 |
| 摘 要： | 小波分析具有时频局部化优点 ,被誉为“数学显微镜”。讨论了利用小波变换提高地震资料分辨率 ,在阐述小波原理的基础上 ,给出小波分频带能量合理补偿提高分辨率的方法。考虑到快速小波变换分解尺度数目与信号样点数有关 ,借鉴通讯系统中的过采样技术 ,提出过采样小波变换提高地震资料分辨率方法。实际资料试算表明 ,过采样小波变换方法可以有效提高地震资料分辨率 ,是对小波变换方法的扩展。 |
| 关 键 词： | 过采样 小波变换 分频 分辨率 补偿 |
| 文章编号： | 1000-1441(2003)04-0513-04 |
| 收稿时间： | 2002-11-05 |
| 修稿时间： | 2002-11-05 |
Enhancement of seismic resolution by over-sampling wavelet transform |
|
| Liu Peiti,Liu Xiwu. Enhancement of seismic resolution by over-sampling wavelet transform[J]. Geophysical Prospecting For Petroleum, 2003, 42(4): 513-516 | |
| Authors: | Liu Peiti Liu Xiwu |
| Affiliation: | 1. Geophysical Research Institute, Shengli Oilfield, Dongying 257000, China; |
| Abstract: | Wavelet analysis is a localization tool in both time and frequency domain, and is praised "the mathematical microscope". Applications to Geophysics are now very popular and effective. This paper discussed the enhancement of seismic resolution by wavelet transform. Considering that the number of decomposition scales for wavelet transform is related to the number of signal samples, a method for enhancement of seismic resolution was developed by virtue of over-sampling theory of communication system. The results from real data showed this method is more effective than conventional wavelet transform based methods. |
| Keywords: | over-sampling wavelet transform frequency division resolution compensation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《石油物探》浏览原始摘要信息 | |
| 点击此处可从《石油物探》下载全文 | |