Optimized compact finite diference scheme for frequency domain acoustic wave equation

Li, Aman; Liu, Hong

doi:10.1007/s11600-019-00332-z

Artykuł - szczegóły

Tytuł artykułu

Optimized compact finite diference scheme for frequency domain acoustic wave equation

Autorzy

Li Aman , Liu Hong

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-019-00332-z

Warianty tytułu

Języki publikacji

Abstrakty

Frequency-domain numerical simulation is the most important foundation of frequency-domain full-waveform inversion and reverse time migration. The accuracy of numerical simulation seriously afects the results of the seismic inversion and image. In this article, we develop an optimized compact finite diference scheme for acoustic wave equation in frequency domain to improve numerical simulation accuracy. For the sake of avoiding the extra memory and computational costs caused by solving the inverse of a pentadiagonal band matrix, we calculate the optimized compact finite diference discrete operator for the Laplace operator in the numerical simulation. Although the optimized compact finite diference scheme has only second-order formal accuracy, it has a spectral-like resolution feature. This method can significantly reduce the numerical dispersion and the numerical anisotropy. We fnd that the results of the optimized compact finite diference scheme agree well with the analytic solution according to accuracy analysis. Two numerical simulations are done to verify the theoretical analysis of the optimized compact finite diference scheme.

Słowa kluczowe

optimization frequency domain modeling compact finite diference

optymalizacja domena częstotliwości modelowanie

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2019

Tom

Vol. 67, no. 5

Strony

1391--1402

Opis fizyczny

Bibliogr. 35 poz.

Twórcy

autor

Li Aman

liaman16@mails.ucas.ac.cn

Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
Institutions of Earth Science, Chinese Academy of Science, Beijing 100029, China
University of Chinese Academy of Sciences, Beijing 100049, China

autor

Liu Hong

Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
Institutions of Earth Science, Chinese Academy of Science, Beijing 100029, China
University of Chinese Academy of Sciences, Beijing 100049, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-8d1b87cc-5481-481e-a2e6-6f555940d721