| 小波变换去噪方法研究 |
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| 引用本文： | 詹毅.小波变换去噪方法研究[J].物探化探计算技术,2001,23(4):299-302. |
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| 作者姓名： | 詹毅 |
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| 作者单位： | 华中信息技术集团有限公司, |
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| 摘 要： | 作者在本文中就如何利用小波变波消除噪音干扰的方法进行了研究。针对地震资料的特点提出了消除相干干扰的具体计算方法，即将地震资料用小波变换分频处理，针对干扰与有效波共存的频段波场，利用自动追踪找出相干干扰的方向，再用中值滤波恢复相干波场，即从共存的波场中分离出来，再对它进行小波反变换即可重构相干干扰，最后从原始记录中消去它，以获得所需要的有效信号。几个地区的试算表明该方法的有效性，文中最后列出了这些试算中的一个例子。
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| 关 键 词： | 小波变换 中值滤波 自动追踪 相干干扰 地震资料 |
| 文章编号： | 1001-1749(2001)04-0299-04 |
| 修稿时间： | 2001年6月7日 |
A METHOD OF ELIMINATION NOISE BY WAVELET TRANSFORM |
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| ZHAN Yi.A METHOD OF ELIMINATION NOISE BY WAVELET TRANSFORM[J].Computing Techniques For Geophysical and Geochemical Exploration,2001,23(4):299-302. |
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| Authors: | ZHAN Yi |
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| Abstract: | This paper mainly studies how to eliminate noise interference by wavelet transform and puts forward an applied method to cleanup the coherence interference in seismic data. At first, frequencies of seismic data are divided using wavelet transform and the direction of the coherence interferences in the common frequency band of the interferences and signals are traced automatically. Then, coherence interference is recovered by mid-value filtering. The interference is separated from the common frequency band and reconstructed by reverse wavelet transform and consequently is deducted from original data. A real case is given to illustrate the validity of this method. |
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| Keywords: | wavelet transform mid value filter automatic tracing coherence interference seismic data |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
