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- W2280593839 abstract "Correlating the source and receiver wavefields, which are travelling in a similar direction, isolates the long wavelength features of the gradient. This selective correlation is effectively achieved using the angle-domain imaging condition. We propose a frequency-domain waveform inversion algorithm based on the angle-domain filtered gradient. Since a large reflection angle in the imaging condition implies that the source and receiver wavefiels are travelling in a similar direction, the filtered gradient based on the large cut-off angle has a long wavelength component. As the cut-off angle is decreased, the proposed inversion method moves from the tomographic type inversion to the classic waveform inversion. Numerical examples show that the waveform inversion based on the angle-domain filtered gradient generates a long wavelength structure without low frequency information." @default.
- W2280593839 created "2016-06-24" @default.
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- W2280593839 date "2015-06-01" @default.
- W2280593839 modified "2023-09-26" @default.
- W2280593839 title "Frequency-domain Waveform Inversion Based on the Angle-domain Filtered Gradient" @default.
- W2280593839 doi "https://doi.org/10.3997/2214-4609.201412767" @default.
- W2280593839 hasPublicationYear "2015" @default.
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