Can frequency domain inversion of seismic data work?

1993 ◽  
Author(s):  
R. G. Pratt ◽  
Zhong-Min Song ◽  
Paul R. Williamson
Keyword(s):  
Frequency Domain ◽  
Seismic Data ◽  
Domain Inversion

scholarly journals Multi-scale time-frequency domain full waveform inversion with a weighted local correlation-phase misfit function

2019 ◽  
Vol 16 (6) ◽  
pp. 1017-1031 ◽  
Author(s):  
Yong Hu ◽  
Liguo Han ◽  
Rushan Wu ◽  
Yongzhong Xu
Keyword(s):  
Frequency Domain ◽  
Seismic Data ◽  
Waveform Inversion ◽  
Low Frequency ◽  
Full Waveform Inversion ◽  
Local Correlation ◽  
Time Frequency ◽  
Model Dependence ◽  
Full Waveform ◽  
Frequency Components

Abstract Full Waveform Inversion (FWI) is based on the least squares algorithm to minimize the difference between the synthetic and observed data, which is a promising technique for high-resolution velocity inversion. However, the FWI method is characterized by strong model dependence, because the ultra-low-frequency components in the field seismic data are usually not available. In this work, to reduce the model dependence of the FWI method, we introduce a Weighted Local Correlation-phase based FWI method (WLCFWI), which emphasizes the correlation phase between the synthetic and observed data in the time-frequency domain. The local correlation-phase misfit function combines the advantages of phase and normalized correlation function, and has an enormous potential for reducing the model dependence and improving FWI results. Besides, in the correlation-phase misfit function, the amplitude information is treated as a weighting factor, which emphasizes the phase similarity between synthetic and observed data. Numerical examples and the analysis of the misfit function show that the WLCFWI method has a strong ability to reduce model dependence, even if the seismic data are devoid of low-frequency components and contain strong Gaussian noise.

FWT2D: A massively parallel program for frequency-domain full-waveform tomography of wide-aperture seismic data—Part 1

2009 ◽  
Vol 35 (3) ◽  
pp. 487-495 ◽  
Author(s):  
Florent Sourbier ◽  
Stéphane Operto ◽  
Jean Virieux ◽  
Patrick Amestoy ◽  
Jean-Yves L’Excellent
Keyword(s):  
Frequency Domain ◽  
Seismic Data ◽  
Parallel Program ◽  
Massively Parallel ◽  
Wide Aperture ◽  
Full Waveform ◽  
Waveform Tomography
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