Unwrapped phase inversion for near surface seismic data

Yun Seok Choi, Tariq Ali Alkhalifah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The Phase-wrapping is one of the main obstacles of waveform inversion. We use an inversion algorithm based on the instantaneous-traveltime that overcomes the phase-wrapping problem. With a high damping factor, the frequency-dependent instantaneous-traveltime inversion provides the stability of refraction tomography, with higher resolution results, and no arrival picking involved. We apply the instantaneous-traveltime inversion to the synthetic data generated by the elastic time-domain modeling. The synthetic data is a representative of the near surface seismic data. Although the inversion algorithm is based on the acoustic wave equation, the numerical examples show that the instantaneous-traveltime inversion generates a convergent velocity model, very similar to what we see from traveltime tomography.
Original languageEnglish (US)
Title of host publicationSEG Technical Program Expanded Abstracts 2012
PublisherSociety of Exploration Geophysicists
Pages2748-2752
Number of pages5
ISBN (Print)9781622769452
DOIs
StatePublished - Oct 25 2012

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