Elimination of direct wave in GPR signal via 2-D physical wavelet frame

摘要：

Direct wave is one of the major interferences to ground penetrating radar (GPR) signal, and the elimination of direct wave is a key technology for shallow object identification. In view of the features of direct wave in the GPR signal, it can be eliminated by taking 2-D physical wavelet as the basic wavelet to conduct wavelet transform on the GPR signal and selecting proper wavelet scale to estimate direct wave interference. The method of 2-D physical wavelet frame has been verified to be effective through processing the actually-detected data of two GPRs. Compared to 2-D continuous directed wavelet transform, it embraces the advantages of small memory occupancy and fast calculation speed.

关键词： 2-D physical wavelet Wavelet transform direct wave in ground penetrating radar

作者: Xianxin Shi Qiufen Yang Kai Wu

作者单位: Xi an Branch, China Coal Research Institute, Xian 710054, China School of Electronic and Informati Departement of physics,Xian University of Arts and Science, Xian 710065, China Northwest Hydro Consulting Engineers, CHECC, Xian 710065, China

会议类型: 国际会议

会议名称: The 4th International Conference on Environmental and Engineering Geophysics(第四届环境与工程地球物理国际会议 ICEEG2010)

会议地点: 成都

会议语种:英文

页码: 594-599

在线出版日期: 2010-06-14（万方平台首次上网日期，不代表论文的发表时间）