Title :
Kirchhoff migration for specifying velocity model in ground penetrating radar method
Author :
Van, Nguyen Thanh ; Van Anh Cuong, Le ; Dang Hoai Trung ; Triet, Vo Minh ; Tuan, Huynh Kim ; Van Giang, Nguyen
Author_Institution :
Dept. of Geophys., Vietnam Nat. Univ., Ho Chi Minh City, Vietnam
Abstract :
The Kirchhoff migration plays an important role in converting seismic data into images of geological layers according to viewpoint in the applied geophysics. In this paper, the application of the Kirchhoff migration was used in the case of the high frequency electromagnetic method for specifying GPR velocity model. The measurements of raw GPR data collected by Ramac X3M with 500 MHz frequency in HoChiMinh city were processed on the basis of the Kirchhoff migration to velocity model by establishing a set of different velocities. The migrated results of a diffraction case were analyzed to choose the optimal velocity. The optimal velocities of being chosen from Kirchhoff migration in two cases were considered medium environment velocities.
Keywords :
geophysical signal processing; ground penetrating radar; GPR velocity model; HoChiMinh city; Kirchhoff migration; Ramac X3M; Vietnam; applied geophysics; geological layers; ground penetrating radar method; high frequency electromagnetic method; seismic data conversion; Cities and towns; Data models; Diffraction; Frequency measurement; Geology; Geophysics; Ground penetrating radar; Common mid point (CMP); Diffraction model; Ground Penetrating Radar (GPR); Kirchhoff migration;
Conference_Titel :
Ground Penetrating Radar (GPR), 2012 14th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-2662-9
DOI :
10.1109/ICGPR.2012.6254902
