基于Hilbert-Huang变换的探地雷达信号增强及复信号分析
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Release time:2020-08-08 DOI number:10.11720/wtyht.2012.6.17 Affiliation of Author(s):中南大学地球科学与信息物理学院 Teaching and Research Group:中南大学应用地球物理系 Journal:物探与化探 Place of Publication:中国 Key Words:探地雷达；复信号分析；经验模态分解；希尔伯特-黄变换；本征模态函数 Abstract:阐述了Hilbert-Huang变换原理,着重讨论了EMD分 解应满足的条件及具体分解过程.以黑麋峰抽水蓄能电站进厂交通隧洞实测GPR剖面为例,应用EMD分解去除部分噪声,再利用Hilbert变换求取GPR 剖面复信号,提取瞬时振幅,瞬时相位,瞬时频率3个参数,绘制出相互独立的瞬时参数剖面图,根据不同地质状况进行多参数综合解释.结果表明,该方法避免了 使用单一时距剖面分析所造成的解释偏差,能够更好地对异常信息做出反映,提高了GPR数据的解析精度. Co-author:余凯, 戴前伟 First Author:冯德山 Indexed by:Applied Research Document Code:1000-8918 (2012) 06-0975-06 Discipline:地质资源与地质工程 Document Type:J Volume:36 Issue:6 Page Number:975-980 ISSN No.:1000-8918 Translation or Not:no CN No.:11-1906/P Date of Publication:2012-12-15 -
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