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Frequency Domain Waveform Inversion - A Strategy for Choosing Frequencies
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 63rd EAGE Conference & Exhibition, Jun 2001, cp-15-00403
Abstract
P014 Frequency Domain Waveform Inversion: A strategy for choosing frequencies. Summary 1 We present a methodology defining an optimal temporal frequency sequence in the reconstruction of velocity perturbations from a surface seismic survey. We show that in the case of a 1-D perturbation of an otherwise homogeneous medium this sequence depends only on the depth of the perturbation and on the offset range present in the acquisition. The main idea derived from diffraction tomography is that the larger the offset range the fewer frequencies are needed. We use this approach to find a set of temporal frequencies that provides a