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- W2321822223 abstract "The wave equation traveltime inversion (WT) method is adapted to the reconstruction of the dielectric distribution from first arrival traveltime radar data. A gradient optimization algorithm is used and the gradient function is computed from finitedifference solutions to the 2-D Maxwell’s equations. The key advantage of the radar WT method over conventional ray tracing radar tomography is that it accounts for scattering and diffusion effects in the data and works well in both highly resistive and moderately conductive rocks. This technique is successfully applied to both synthetic and real radar data. Comparisons with a ray tracing (RT) tomography scheme show that the radar WT method is more reliable and accurate than the RT method when rock conductivity is larger than .002 S/m. The WT and RT methods are about equally effective when conductivity is less than or equal to .OOl S/m. The disadvantage of the WT scheme is that it generally demands an order of magnitude more computational time than the RT method." @default.
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- W2321822223 date "1993-01-01" @default.
- W2321822223 modified "2023-09-22" @default.
- W2321822223 title "First Arrival Inversion Of Crosswell Radar Data By Finite-Difference Solutions To Maxwell’s Equations" @default.
- W2321822223 doi "https://doi.org/10.3997/2214-4609-pdb.209.1993_027" @default.
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