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Abstract:
We study the effectiveness of velocity-only time-domain waveform
inversion for inverting synthetic data modeled with both velocity and density
contrasts. We present a detailed review of the Born approximation for the
constant-density acoustic wave equation and its application to the inversion of
velocity models for seismic reflection data. We create synthetic models with
both constant and variable density and compare the effectiveness of
velocity-only waveform inversion in each case. Results from this simple test
suggest that density contrasts can hamper the reconstruction of velocity
perturbations.
2007-09-18