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Warianty tytułu
Introduction to GPR surveys interpretation with procedure of numerical modelling
Języki publikacji
Abstrakty
The paper presents results of numerical modelling of the electromagnetic wave field in the ground based on the Finite Difference Time Domain Method (FDTD). Theoretical background of the electromagnetic wave field in the ground is presented. Techniques of building of the discrete model and the numerical simulation are described. Computer program REFLEX-W, used for modelling, is also briefly characterized. A sample measurement echogram for shallow georadar (GPR, ground penetrating radar) surveys is presented together with the synthetic one. Usefulness of the FDTD procedure in the interpretation of echograms is analysed and evaluated. The main goal of the paper is to introduce a reader into the procedure of numerical modelling, a modern method of the GPR surveys interpretation.
Czasopismo
Rocznik
Tom
Strony
563--568
Opis fizyczny
Bibliogr. 13 poz., rys., wykr.
Twórcy
autor
- Wydział Geologii, Geofizyki i Ochrony Środowiska, Akademia Górniczo-Hutnicza, al. Mickiewicza 30, 30-059 Kraków, goleb@2-0.pl
Bibliografia
- 1. ANNAN A.P. 2001 - Ground Penetrating Radar. Workshop Notes, Sensor and Software Inc., Canada.
- 2. BERGMANN T., ROBERTSSON J. & HOLLIGER K. 1998 - Finite difference modeling of electromagnetic wave propagation in dispersive and attenuating media. Geophysics, 63: 856-867.
- 3. CARCIONE J.M. 1996 - Ground Penetrating Radar: wave theory and numerical simulation in lossy, anisotropic media. Geophysics, 61: 1664-1677.
- 4. CARCIONE J.M. 1998 - Radiation patterns for 2D GPR forward modelling. Geophysics, 63: 424-430.
- 5. CARCIONE J.M., PINERO F.L. & ZAMPARO M. 2002 - Exploding reflector concept for Ground Penetrating Radar modeling. Ann. Geoph., 45: 473-478.
- 6. HOLLIGER K. 2002 - Finite difference modeling of Ground Penetrating Radar data. 9-th International Conference on Ground Penetrating Radar, Santa Barbara, California, USA.
- 7. KARCZEWSKI J. 1997 - Zastosowanie metody georadarowej do wykrywania zaburzeń naturalnych i antropogenicznych w warstwach przypowierzchniowych. Arch. Wydz. Geol. Geof. Och. Środ., AGH, Kraków.
- 8. KOSLOFF R. & KOSLOFF D. 1986 - Absorbing boundaries for wave propagation problems. Jour. Comput. Phys., 63: 363-376.
- 9. MORAWSKI T. & GWAREK W. 1998 - Pola i fale elektromagnetyczne. WNT, Warszawa.
- 10. MUR G. 1981 - Absorbing boundary condition for finite difference approximation of time domain electromagnetic field equations. IEEE Trans. Electromag. Comput., 23: 1073-1077.
- 11. REFLEX-W Manual 2003 - K.J. Sandmeier, Karlsrue, Germany.
- 12. ROBERTS R.L. & DANIELS J.J. 1997 - Modeling near-field GPR in three dimensions using FDTD method. Geophysics, 62: 1114-1126.
- 13. YEE K.S. 1966 - Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media. IEEE Trans. Antennas Propagat., 14: 302-307.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS3-0022-0045