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Frequency-domain acoustic wave modeling using regularized preconditioning iterative method
Si JieGe1,2,3; Li XiaoFan1,2; Zhang Huan1,2,4; Li BingFei1,2; Ma XiaoNa1,2; Lu Lu1,2,5; Chen ShiZhong6
AbstractOne of the keys for efficient numerical modeling of frequency-domain acoustic wave modeling is to solve a large sparse and linear system, which the coefficient matrix have the character of non-symmetric and non-positive. To improve the convergence property and robustness of numerical modeling, we have developed a new regularized preconditioning iterative method that enforced the sparsity of solutions in frequency-domain. The construction of preconditioner requires the regularization for large sparse original problem firstly, which is called regularized system. Then we regarded the approximate iterative solution of the regularized system as initial value of original problem. The numerical computational experiments including the synthetic complex model indicate that the extra computation of the method is almost negligible. By comparison with the storage space of LU decomposition, the regularized preconditioning iterative algorithm is dramatically decreased. Besides, effectiveness and convergence rates of regularized preconditioning iterative solvers are greatly improved by regularized preprocessing.
KeywordRegularized preconditioning technique Quasi-Newton method Acoustic wave modeling
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000467308600019
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Document Type期刊论文
Corresponding AuthorLi XiaoFan
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.CETC, Res Inst 3, Beijing 100015, Peoples R China
4.CSSC, Syst Engn Res Inst, Beijing 100094, Peoples R China
5.China Head Aerosp Technol Co Ltd, Beijing 100085, Peoples R China
6.North China Univ Water Resources & Elect Power, Sch Resources & Environm, Zhengzhou 450046, Henan, Peoples R China
Recommended Citation
GB/T 7714
Si JieGe,Li XiaoFan,Zhang Huan,et al. Frequency-domain acoustic wave modeling using regularized preconditioning iterative method[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(5):1824-1834.
APA Si JieGe.,Li XiaoFan.,Zhang Huan.,Li BingFei.,Ma XiaoNa.,...&Chen ShiZhong.(2019).Frequency-domain acoustic wave modeling using regularized preconditioning iterative method.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(5),1824-1834.
MLA Si JieGe,et al."Frequency-domain acoustic wave modeling using regularized preconditioning iterative method".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.5(2019):1824-1834.
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