井间电磁波层析成像中的高精度时间域正演计算

林树海; 赵立英

Volume 32 Issue 4

Jul. 2007

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LIN Shu-hai, ZHAO Li-ying, 2007. High Precision Time Domain Forward Modeling for Crosshole Electromagnetic Tomography. Earth Science, 32(4): 469-473.

Citation:

LIN Shu-hai, ZHAO Li-ying, 2007. High Precision Time Domain Forward Modeling for Crosshole Electromagnetic Tomography. Earth Science, 32(4): 469-473.

LIN Shu-hai, ZHAO Li-ying, 2007. High Precision Time Domain Forward Modeling for Crosshole Electromagnetic Tomography. Earth Science, 32(4): 469-473.

Citation:

LIN Shu-hai, ZHAO Li-ying, 2007. High Precision Time Domain Forward Modeling for Crosshole Electromagnetic Tomography. Earth Science, 32(4): 469-473.

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High Precision Time Domain Forward Modeling for Crosshole Electromagnetic Tomography

LIN Shu-hai^{1, 2, 3
,},
ZHAO Li-ying⁴

1.
State Key Laboratory of Geological Processes and Mineral Resources; Geo-detection Laboratory of the Ministry of Education, Beijing 100083, China
2.
School of Geophysics and Inf ormation Technology, China University of Geosciences, Beij ing 100083, China
3.
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
4.
School of Applied Science, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2007-04-12
Publish Date: 2007-07-25

Abstract

Abstract

In order to improve the resolution of crosshole electromagnetic tomography, high precision of forward modeling is necessary. A pseudo-spectral time domain (PSTD) forward modeling was used to simulate electromagnetic wave propagation between two boreholes. The PSTD algorithm is based on finite difference time domain (FDTD) method and employs fast Fourier transform (FFT) to calculate spatial derivatives in Maxwell′s equations. Besides having the strongpoints of FDTD method, PSTD algorithm also demonstrates higher calculation precision than FDTD method under the same calculation condition. The PSTD forward modeling has laid important foundation of crosshole electromagnetic high-resolution tomography.
- finite difference time domain method,
- pseudo-spectral time domain algorithm,
- forward modeling,
- tomography

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References(13)

References

Bourgeois, J. M., Smith, G. S., 1996. A fully three-dimensional simulation of ground-penetrating radar: FDTDtheory compared with experiment. IEEE Trans. Geosci. Remote Sensing, 34: 36-44. doi: 10.1109/36.481890

Chen, H. W., 1996. Staggered-grid pseudo-spectral acousticwave field simulation in two-dimensional media. J. Acoust. Soc. Am. , 100: 120-131. doi: 10.1121/1.415947

Fornberg, B., 1997. The pseudo-spectral method—Comparisons with finite difference for the elastic wave equation. Geophysics, 52: 483-501.

Liu, Q. H., 1997. The PSTD algorithm: A time-domainmethod requiring only two cells per wavelength. Microwave Opt. Technol. Lett. , 15 (2): 158-165.

Liu, Q. H., 1999. Large-scale simulations of electromagnetic and acoustic measurements using the pseudospectral time-domain algorithm. IEEE Transaction on Geoscience and Remote Sensing, 37 (2): 917-926. doi: 10.1109/36.752210

Sanada, Y., 2000. The study of high precision modeling andi maging of the ground penetration Radar (GPR): Doctorthesis. Kyoto University.

Taflove, A., Hagness, S. C., 2000. Computational electrodynamics: The finite difference time domain method. 2nd edition. Artech House, 67-107.

Wang, T., Tripp, A. C., 1996. FDTD simulation of EM wave propagationin 3-D media. Geophysics, 61: 110-120. doi: 10.1190/1.1443930

Wilt, M., Alumbaugh, D., Morrison, H. F., et al., 1995. Crosswell electromagnetic tomography: System design consideration and field result. Geophysics, 60: 871-885. doi: 10.1190/1.1443823

Witte, D. C., Richards, P. G., 1990. The pseudo-spectralmethod for simulating wave propagating. Computational Acoustics, 3: 1-18.

Yokota, T., Matsushi ma, J., 2004. Seismic waveform tomo-graphy in the frequency-space domain: Selection of theoptimal temporal frequency for inversion. Exploration Geophysics, 35: 19-24. doi: 10.1071/EG04019

Zhou, C. G., Liu, L. B., Jr, J. W., 2001. Nonlinear inversionof borehole radar tomography data to reconstruct velocity and attenuation distributionin earth materials. Journal of Applied Geophysics, 47: 271-284. doi: 10.1016/S0926-9851(01)00071-4

宇野亭, 1998. FDTD法による電磁界およびアンテナ解析. コロナ社.

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