| 基于连续小波变换的自适应面波压制方法 |
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| 引用本文： | 陈文超,高静怀,包乾宗.基于连续小波变换的自适应面波压制方法[J].地球物理学报,2009,52(11):2854-2861. |
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| 作者姓名： | 陈文超 高静怀 包乾宗 |
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| 作者单位： | 1.西安交通大学电子与信息工程学院波动与信息研究所,西安 710049;2.长安大学地质工程与测绘学院地球物理系，西安 710054 |
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金面上项目，国家高技术研究发展计划项目(863) |
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| 摘 要： | 面波干扰的抑制是陆上地震资料处理的主要问题之一.本文根据炮集记录中面波与反射波主要能量在小波域分布区域的不同，以及面波干扰的影响随炮检距变化等特点，提出了一种具有时变、空变特性的自适应面波衰减方法.文中将该方法用于模型及实际炮集资料的处理，并与常用的高通滤波方法进行对比，结果表明,该方法在衰减面波干扰的同时，能更好地保持反射波的振幅及相位信息.
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| 关 键 词： | 连续小波变换 面波压制 自适应滤波 |
| 收稿时间： | 2009-3-11 |
| 修稿时间： | 2009-10-23 |
Adaptive attenuation of ground roll via continuous wavelet transform |
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| CHEN Wen-Chao,GAO Jing-Huai,BAO Qian-Zong.Adaptive attenuation of ground roll via continuous wavelet transform[J].Chinese Journal of Geophysics,2009,52(11):2854-2861. |
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| Authors: | CHEN Wen-Chao GAO Jing-Huai BAO Qian-Zong |
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| Institution: | 1.School of Electronics & Information Engineering, Xi′an Jiaotong University, Xi′an 710049, China;2.College of Geology Engineering and Geomatics, Chang′an University, Xi′an 710054, China |
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| Abstract: | Ground roll attenuation is one of the important problems in land seismic data processing. According to the distribution characteristics of ground roll and reflection signal in wavelet domain and the characteristic of ground roll changing with the offset, an adaptive ground roll attenuation method is presented, which has time-variable and space-variable characteristic. The method has been applied to the synthetic and real data, and compared with high-pass filtering methods. The processing and comparison results show that the proposed method is effective in attenuating ground-roll, at the same time, it can well preserve the amplitude and phase information of reflection wave. |
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| Keywords: | Continuous wavelet transform Ground roll attenuation Adaptive filtering |
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