Acoustic multi-parameter full waveform inversion based on the wavelet method
Zhang, Wensheng1,2
AbstractIn this paper, the acoustic full waveform inversion based on the wavelet method is proposed. It allows to determine density and velocity parameters simultaneously in the time domain. The forward problem is solved based on the wavelet method. The numerical schemes for modelling are constructed in detail. The stability condition is derived for the first time. The inversion is an optimization process for minimizing the mismatch between the synthetic data and the observed data. The computational scheme for the gradient of the objective function is constructed based on the matrix analysis technique. The inversion is implemented from low frequency to high frequency successively. Furthermore, the inversion result of current low frequency is served as the initial guess of next high frequency. This hierarchic strategy includes the smaller wavelengths progressively and improves the inversion robustness. Numerical computations for the benchmark Marmousi model demonstrate that the method has good ability to reconstruct media parameters in complex structures.
KeywordFull waveform inversion multi-parameter wavelet method numerical schemes acoustic wave time domain
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[11471328] ; National Natural Science Foundation of China[51739007]
WOS Research AreaEngineering ; Mathematics
WOS SubjectEngineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
WOS IDWOS:000549459700001
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Document Type期刊论文
Corresponding AuthorZhang, Wensheng
Affiliation1.Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Wensheng. Acoustic multi-parameter full waveform inversion based on the wavelet method[J]. INVERSE PROBLEMS IN SCIENCE AND ENGINEERING,2020:28.
APA Zhang, Wensheng.(2020).Acoustic multi-parameter full waveform inversion based on the wavelet method.INVERSE PROBLEMS IN SCIENCE AND ENGINEERING,28.
MLA Zhang, Wensheng."Acoustic multi-parameter full waveform inversion based on the wavelet method".INVERSE PROBLEMS IN SCIENCE AND ENGINEERING (2020):28.
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