The MFS for the identification of a sound-soft interior acoustic scatterer. (October 2017)

• Record Type: Journal Article
• Authors: Karageorghis, A.; Lesnic, D.; Marin, L.
• Is Part Of: Engineering analysis with boundary elements. Volume 83(2017)
• Page Start: 107
• Page End: 112
• Publication Date: 2017-10
• Subjects: Inverse problem -- Sound-soft scatterer -- Acoustic scattering -- Method of fundamental solutions -- Regularization; Primary 65N35 -- Secondary 65N21 -- 65N38; Boundary element methods -- Periodicals; Engineering mathematics -- Periodicals; Équations intégrales de frontière, Méthodes des -- Périodiques; Mathématiques de l'ingénieur -- Périodiques; Boundary element methods; Engineering mathematics; Periodicals; 620.00151
• DOI: 10.1016/j.enganabound.2017.07.021
• Languages: English
• ISSNs: 0955-7997

Abstract

Abstract: We employ the method of fundamental solutions (MFS) for detecting a sound-soft scatterer surrounding a host acoustic homogeneous medium due to a given point source inside it. The measurements are taken inside the medium and, in addition, are contaminated with noise. The MFS discretization yields a nonlinear constrained regularized minimization problem which is solved using standard software. The results of several numerical experiments are presented and discussed.