The disadvantages of conventional seismic tomographic ray tracing and inversion by calculus-based techniques include the assumption of a single ray path for each source– receiver pair, the non-inclusion of head waves, long computation times, and the difficulty in finding ray paths in a complicated velocity distribution. A ray-tracing algorithm is therefore… (More)

Finite elementcover a range of earth models , the simulated evolution tech - simulation of two dimensional seismic wave propagation , Comput . niques are found to work over a large domain of problems

F. Natterer

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Ray tracing using reciprocity

S. K. Nath, S. Majumdar, S. Sengupta

1992

Nonlinear multiparameter optimization Dyer, B

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1 Excerpt

Remark on an earlier iterative tomographic algorithm

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1 Excerpt

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K. A. Dines

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1 Excerpt

Iterative methods for the 3 - dimensional reconstruction e ffi cacy and usefulness of the CPNN , GA and EP tomographic of an object from projections