The application of split step fourier migration to interpreting GPR data in Vietnam

Dang Hoai Trung, Nguyen Van Giang, Nguyen Thanh Van, Nguyen Van Thuan, Vo Minh Triet
Author affiliations

Authors

  • Dang Hoai Trung University of Science, Vietnam National University-Ho Chi Minh City
  • Nguyen Van Giang Institute of Geophysics, VAST
  • Nguyen Thanh Van University of Science, Vietnam National University-Ho Chi Minh City
  • Nguyen Van Thuan University of Science, Vietnam National University-Ho Chi Minh City
  • Vo Minh Triet University of Science, Vietnam National University-Ho Chi Minh City

DOI:

https://doi.org/10.15625/1859-3097/17/4B/13004

Keywords:

Split Step Fourier Migration, energy diagram, finite - difference migration.

Abstract

Migration methods play an essential role in processing ground penetrating radar data. For estimating electromagnetic propagation velocity distribution, the finite - difference migration is used because of its reliable performance with high noise conditions. To optimize this migration algorithm, we propose using energy diagram as a criterion of looking for the correct velocity. If the velocity varies laterally and vertically, split step Fourier migration is used for creating a true image of subsurface structures. We applied these steps to real data in Vietnam. The results verified on field data show that migrated images with calculated velocity from energy diagram have the best quality.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

Gazdag, J., and Sguazzero, P., 1984. Migration of seismic data. Proceedings of the IEEE, 72(10), 1302-1315.

Yilmaz, O., 1987. Seismic Data Analysis, Chapter 4, Society of Exploration Geophysicists, Electronic Edition, ISBN 978-0-931830-46-4, pp. 476-491.

Han, B., 1998. A comparison of four depth-migration methods. 68th Ann. Internat. Mtg., Soc. Expl. Geophys. Pp. 1104-1107, doi:10.1190/1.1820080.

Stoffa, P. L., Fokkema, J. T., de Luna Freire, R. M., and Kessinger, W. P., 1990. Split-step Fourier migration. Geophysics, 55(4), 410-421.

Trung, D. H, Van, N. T., Thuan, N. V., 2016. Migration methods for interpreting GPR data in Vietnam. Proceedings of workshop on capacity building on geophysical technology in mineral exploration and assessment on land, sea and island, Hanoi.

Van Nguyen, T., Van Le, C. A., Nguyen, V. T., Dang, T. H., Vo, T. M., and Vo, L. N. N., 2017. Energy Analysis in Semiautomatic and Automatic Velocity Estimation for Ground Penetrating Radar Data in Urban Areas: Case Study in Ho Chi Minh City, Vietnam. In International Conference on Geo-Spatial Technologies and Earth Resources (pp. 34-51). Springer, Cham.

Tzanis, A., 2006. MATGPR: A freeware MATLAB package for the analysis of common-offset GPR data. In Geophysical Research Abstracts (Vol. 8, No. 09448).

Downloads

Published

15-12-2017

How to Cite

Trung, D. H., Giang, N. V., Van, N. T., Thuan, N. V., & Triet, V. M. (2017). The application of split step fourier migration to interpreting GPR data in Vietnam. Vietnam Journal of Marine Science and Technology, 17(4B), 161–166. https://doi.org/10.15625/1859-3097/17/4B/13004

Issue

Section

Articles

Most read articles by the same author(s)