Unique identification of a multi-layered fluid–solid medium

Autor:	Yanli Cui, Xiliang Li, Fenglong Qu
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Inverse scattering Uniqueness Fluid–solid interaction Multi-layered medium Analysis QA299.6-433
Zdroj:	Boundary Value Problems, Vol 2020, Iss 1, Pp 1-12 (2020)
Druh dokumentu:	article
ISSN:	1687-2770
DOI:	10.1186/s13661-020-01397-2
Popis:	Abstract This paper is concerned with the inverse scattering of time-harmonic acoustic plane waves by a multi-layered fluid–solid medium in the three dimensional space. We establish the global uniqueness in identifying the embedded penetrable solid obstacle, the surrounding fluid medium and its wave number from the acoustic far-field pattern for all incident plane waves at a fixed frequency. The proof depends on constructing different kinds of interior transmission problems in appropriate small domains and the a priori estimates derived for both the elastic wave fields in the embedded solid obstacle and the acoustic wave fields in the surrounding fluid medium.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/caedfa1822c547f081251c362f2d7b86 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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