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Journal of Inverse and Ill-posed Problems

Editor-in-Chief: Kabanikhin, Sergey I.

6 Issues per year


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Online
ISSN
1569-3945
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Volume 17, Issue 2 (Jan 2009)

Issues

A second order Newton method for sound soft inverse obstacle scattering

R. Kress / N. Tezel
  • Istanbul Technical University, Electrical and Electronics Engineering Faculty, 34469 Maslak, Istanbul, Turkey. Email:
/ F. Yaman
  • Istanbul Technical University, Electrical and Electronics Engineering Faculty, 34469 Maslak, Istanbul, Turkey. Email:
Published Online: 2009-03-30 | DOI: https://doi.org/10.1515/JIIP.2009.015

Abstract

A new second order Newton method for reconstructing the shape of a sound soft scatterer from the measured far-field pattern for scattering of time harmonic plane waves is presented. This method extends a hybrid between regularized Newton iterations and decomposition methods that has been suggested and analyzed in a number of papers by Kress and Serranho [Inverse Problems 19: 91–104, 2003, Inverse Problems 21: 773–784, 2005, J. Comput. Appl. Math. 204: 418–427, 2007, Inverse Problems 22: 663–680, 2006, Inverse Problems and Imaging 1: 691–712, 2007] and has some features in common with the second degree method for ill-posed nonlinear problems as considered by Hettlich and Rundell [SIAM J.Numer. Anal. 37: 587–620, 2000]. The main idea of our iterative method is to use Huygen's principle, i.e., represent the scattered field as a single-layer potential. Given an approximation for the boundary of the scatterer, this leads to an ill-posed integral equation of the first kind that is solved via Tikhonov regularization. Then, in a second order Taylor expansion, the sound soft boundary condition is employed to update the boundary approximation. In an iterative procedure, these two steps are alternated until some stopping criterium is satisfied. We describe the method in detail and illustrate its feasibility through examples with exact and noisy data.

Key words.: Inverse obstacle scattering; ill-posed problem; Newton iteration

About the article

Received: 2008-08-28

Published Online: 2009-03-30

Published in Print: 2009-03-01


Citation Information: Journal of Inverse and Ill-posed Problems, ISSN (Online) 1569-3945, ISSN (Print) 0928-0219, DOI: https://doi.org/10.1515/JIIP.2009.015. Export Citation

Citing Articles

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[1]
Kuo-Ming Lee
Journal of Mathematical Physics, 2012, Volume 53, Number 4, Page 043503
[2]
Rainer Kress and Kuo-Ming Lee
Journal of Computational Physics, 2011, Volume 230, Number 20, Page 7661
[3]
Lahcène Chorfi and Patricia Gaitan
Inverse Problems, 2011, Volume 27, Number 7, Page 075001

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