A Modified Mixed Domain Method for Modeling Wave Propagation in Heterogeneous Media

Juanjuan Gu, Yun Jing

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A modified mixed-domain method is presented in this paper to model wave propagation in heterogeneous media. The previous mixed domain method is only accurate for weakly heterogeneous media. Both the phase and amplitude corrections are introduced to the mixed-domain method in order to model wave propagation in more strongly heterogeneous media. Two cases are studied to validate the modified method. A two-layered medium with density and speed of sound variation is first studied. A human skull with density and speed of sound variation is then used to further evaluate the accuracy of this method. Result from the angular spectrum approach is used as the benchmark for the layered medium and result from the MATLAB toolbox k-Wave is used as the benchmark for the case of skull. Simulation results show that the modified mixed-domain method is more accurate for strongly heterogeneous media.

Original languageEnglish (US)
Title of host publication2018 IEEE International Ultrasonics Symposium, IUS 2018
PublisherIEEE Computer Society
ISBN (Electronic)9781538634257
DOIs
StatePublished - Dec 17 2018
Event2018 IEEE International Ultrasonics Symposium, IUS 2018 - Kobe, Japan
Duration: Oct 22 2018Oct 25 2018

Publication series

NameIEEE International Ultrasonics Symposium, IUS
Volume2018-October
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2018 IEEE International Ultrasonics Symposium, IUS 2018
CountryJapan
CityKobe
Period10/22/1810/25/18

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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  • Cite this

    Gu, J., & Jing, Y. (2018). A Modified Mixed Domain Method for Modeling Wave Propagation in Heterogeneous Media. In 2018 IEEE International Ultrasonics Symposium, IUS 2018 [8579897] (IEEE International Ultrasonics Symposium, IUS; Vol. 2018-October). IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2018.8579897