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- W2130832839 abstract "We propose a new wave-equation inversion method that mainly depends on the traveltime information of the recorded seismic data. Unlike the conventional method, we first apply a [Formula: see text] transform to the seismic data to form the delayed-shot seismic record, back propagate the transformed data, and then invert the velocity model by maximizing the wavefield energy around the shooting time at the source locations. Data fitting is not enforced during the inversion, so the optimized velocity model is obtained by best focusing the source energy after a back propagation. Therefore, inversion accuracy depends only on the traveltime information embedded in the seismic data. This method may overcome some practical issues of waveform inversion; in particular, it relaxes the dependency of the seismic data amplitudes and the source wavelet." @default.
- W2130832839 created "2016-06-24" @default.
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- W2130832839 date "2009-11-01" @default.
- W2130832839 modified "2023-09-23" @default.
- W2130832839 title "Traveltime information-based wave-equation inversion" @default.
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- W2130832839 doi "https://doi.org/10.1190/1.3243073" @default.
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