基于FastICA的低信噪比探地雷达信号去噪
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Release time:2020-08-08 DOI number:10.3969/j.issn.1001-1749.2017.06.03 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:物探化探计算技术 Place of Publication:中国 Key Words:独立分量分析；探地雷达；负熵 FastICA算法；噪声去除 Abstract:在背景条件复杂的工区,为了提高探地雷达(GPR)勘探资料解释的准确性和可靠性,利用独立分量分析理论进行了强噪声背景下的探地雷达信号去噪研究.阐述独立分量分析(ICA)基本理论,着重讨论了基于负熵最大化的快速独立分量分析(FastICA)算法.应用FastICA算法对单道探地雷达数据和正演含噪雷达剖面分别进行去噪分析,得到去噪后的探地雷达信号.以湖北恩施彭家寨隧道GPR实测数据为例,将Fast ICA算法应用于探地雷达剖面数据去噪.研究结果表明,将FastICA算法应用于探地雷达信号处理,摆脱了传统方法参数设置的束缚,流程简单,在GPR去噪方面有独特的优势,可较好地对低信噪比的GPR原始数据进行噪声去除,有助于突出探地雷达剖面中异常体特征,达到了提高资料解释准确性和可靠性的目的. Co-author:成沁宇 First Author:戴前伟 Indexed by:Applied Research Correspondence Author:冯德山 Document Code:DOI：10.3969/j.issn.1001-1749.2017.06.03 Discipline:地质资源与地质工程 Document Type:J Volume:39 Issue:6 Page Number:727-735 ISSN No.:1001-1749 Translation or Not:no CN No.:51-1242/P Date of Publication:2017-06-03 -
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