| 小波分频技术在地震映像岩溶勘察中的应用 |
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| 引用本文： | 李曙光,刘兵.小波分频技术在地震映像岩溶勘察中的应用[J].工程勘察,2009(2). |
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| 作者姓名： | 李曙光 刘兵 |
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| 作者单位： | 中国地质大学地球物理与空间信息学院;广东省核力工程勘察院; |
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| 摘 要： | 地震映像法是浅层地质勘察的有效方法。目前岩溶区的地震映像勘察,主要根据原始记录波形特征进行地质目标解释识别,具有一定的局限性。频率是物质的固有属性,不同物质具有不同的反射波频段,提取反射波频段的特征信息,对目标地质体的解释非常有利。小波函数具有良好的局部化特征,在时间域和频率域都有较高的分辨率。利用离散平稳小波变换,实现对地震映像资料的分频处理,获取探测目标体对应频率特征的数据剖面,有利于提高地质解释的准确性和可靠性。将该方法应用于云南某高速公路岩溶勘察,取得了良好的效果。
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| 关 键 词： | 小波变换 分频 岩溶勘察 地震映像 |
Application of wavelet frequency-dividing to the seismic imaging for karst exploration |
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| Li Shuguang,Liu Bing.Application of wavelet frequency-dividing to the seismic imaging for karst exploration[J].Geotechnical Investigation & Surveying,2009(2). |
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| Authors: | Li Shuguang Liu Bing |
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| Affiliation: | Li Shuguang~1,Liu Bing~2(1.Institute of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China,2.Guangdong Nuclear Power Engineering Exploration Institute,Guangzhou 510800,China) |
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| Abstract: | Seismic Imaging Method is an effective way to the shallow geological prospecting.The identification and interpretation of geological objects using seismic survey in the karst area are primarily on the basis of the waveform characteristics of original records which have some limitations currently.Frequency is the inherent feature of material,and different materials have the different reflected wave bands.Extracting the feature information of the reflected wave bands is much favorable to the interpretation of... |
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| Keywords: | wavelet transform frequency-dividing karst exploration seismic imaging |
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