Journal of Integral Equations and Applications

Inverse scattering for shape and impedance revisited

Rainer Kress and William Rundell

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Abstract

The inverse scattering problem under consideration is to reconstruct both the shape and the impedance function of an impenetrable two-dimensional obstacle from the far field pattern for scattering of time-harmonic acoustic or E-polarized electromagnetic plane waves. We propose an inverse algorithm that is based on a system of nonlinear boundary integral equations associated with a single-layer potential approach to solve the forward scattering problem. This extends the approach we suggested for an inverse boundary value problem for harmonic functions in Kress and Rundell(2005) and is a counterpart of our earlier work on inverse scattering for shape and impedance in Kress and Rundell(2001). We present the mathematical foundation of the method and exhibit its feasibility by numerical examples.

Article information

Source
J. Integral Equations Applications, Volume 30, Number 2 (2018), 293-311.

Dates
First available in Project Euclid: 13 September 2018

Permanent link to this document
https://projecteuclid.org/euclid.jiea/1536804119

Digital Object Identifier
doi:10.1216/JIE-2018-30-2-293

Mathematical Reviews number (MathSciNet)
MR3853574

Zentralblatt MATH identifier
06979942

Subjects
Primary: 35J05: Laplacian operator, reduced wave equation (Helmholtz equation), Poisson equation [See also 31Axx, 31Bxx] 35J25: Boundary value problems for second-order elliptic equations 45Q05: Inverse problems

Keywords
Inverse scattering Helmholtz equation boundary integral equations regularized Newton iterations

Citation

Kress, Rainer; Rundell, William. Inverse scattering for shape and impedance revisited. J. Integral Equations Applications 30 (2018), no. 2, 293--311. doi:10.1216/JIE-2018-30-2-293. https://projecteuclid.org/euclid.jiea/1536804119


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