Title :
Suppressing the direct wave noise in GPR data via the 2-D physical wavelet frame
Author :
Shi Xianxin ; Yang Qiufen
Author_Institution :
Xi´an Res. Inst., China Coal Technol. & Eng. Group Corp, Xi´an, China
Abstract :
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.
Keywords :
ground penetrating radar; wavelet transforms; 2D continuous directed wavelet transform; 2D physical wavelet frame; GPR data; GPR signal; basic wavelet transform; direct wave interference; direct wave noise; ground penetrating radar signal; memory occupancy; Continuous wavelet transforms; Ground penetrating radar; Interference; Noise reduction; Wavelet domain; 2-D physical wavelet; Direct wave in ground penetrating radar; Wavelet transform;
Conference_Titel :
Transportation, Mechanical, and Electrical Engineering (TMEE), 2011 International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4577-1700-0
DOI :
10.1109/TMEE.2011.6199411
