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3D Electromagnetic Inversion by Volume Integral Equation Method Based on Current Dipole Source

ZHANG Hui¹,LI Tong-lin¹,DONG Rui-xia²

1.College of GeoExploration Science and Technology，Jilin University, Changchun 130026, China;2.Urumqi Branch of GRI, BGP, Urumqi 830016, China

Received:2005-06-22 Revised:1900-01-01 Online:2006-03-26 Published:2006-03-26
Contact: ZHANG Hui

Abstract

Abstract: Volume integral equation method has been used to calculate forward and inverse problems of 3D electromagnetic fields in homogeneous halfspace. In the calculation, Eaton’s method was first referenced to decompose the Jacobian matrix into linear and nonlinear partial differential terms, damped least square method was then applied to fit it optimized iteratively. Numerical results indicate that the algorithm is more accurate and stable in modeling 3D electromagnetic responses. The inversion algorithm can obtain highresolution 3D anomaly body conductivity images.

Key words: volume integral equation method, 3D EM, inversion, current dipole source

CLC Number:

P631.3

ZHANG Hui,LI Tong-lin,DONG Rui-xia. 3D Electromagnetic Inversion by Volume Integral Equation Method Based on Current Dipole Source[J].J4, 2006, 36(02): 284-0288.

References

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