TY - GEN
T1 - Unwrapped phase inversion for near surface seismic data
AU - Choi, Yun Seok
AU - Alkhalifah, Tariq Ali
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2012/10/25
Y1 - 2012/10/25
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/593722
UR - http://library.seg.org/doi/abs/10.1190/segam2012-0356.1
UR - http://www.scopus.com/inward/record.url?scp=85059179162&partnerID=8YFLogxK
U2 - 10.1190/segam2012-0356.1
DO - 10.1190/segam2012-0356.1
M3 - Conference contribution
SN - 9781622769452
SP - 2748
EP - 2752
BT - SEG Technical Program Expanded Abstracts 2012
PB - Society of Exploration Geophysicists
ER -