3D near-to-surface conductivity reconstruction by inversion of VETEM data using the distorted Born iterative method

Wang, G. L.; Chew, W. C.; Cui, T. J.; Aydiner, A. A.; Wright, D. L.; Smith, D. V.

Abstract:

Three-dimensional (3D) subsurface imaging by using inversion of data obtained from the very early time electromagnetic system (VETEM) was discussed. The study was carried out by using the distorted Born iterative method to match the internal nonlinear property of the 3D inversion problem. The forward solver was based on the total-current formulation bi-conjugate gradient-fast Fourier transform (BCCG-FFT). It was found that the selection of regularization parameter follow a heuristic rule as used in the Levenberg-Marquardt algorithm so that the iteration is stable.

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Article

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70026316

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Wang, G. L.; Chew, W. C.; Cui, T. J.; Aydiner, A. A.; Wright, D. L.; Smith, D. V.

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English

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Inverse Problems

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3D near-to-surface conductivity reconstruction by inversion of VETEM data using the distorted Born iterative method; 2004; Article; Journal; Inverse Problems; Wang, G. L.; Chew, W. C.; Cui, T. J.; Aydiner, A. A.; Wright, D. L.; Smith, D. V.