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Inverse Problems
Article . 2003 . Peer-reviewed
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Inverse scattering in inhomogeneous background media

Authors: Devaney, A. J.; Dennison, Michael;

Inverse scattering in inhomogeneous background media

Abstract

Summary: The inverse scattering problem for objects characterized by compactly supported scattering potentials embedded in a known inhomogeneous background medium given single-frequency, multistatic data is addressed within the distorted wave Born approximation (DWBA). The DWBA formulation of the multistatic data matrix is found to be in the form of a linear mapping from the Hilbert space of compactly supported scattering potentials to the finite-dimensional space \(C^N\) of complex \(N\)-tuples where \(N = N_\beta \times N_\alpha\) is the product of the number of receiver elements \(N_\beta\) with the number of transmitter elements \(N_\alpha\). A pseudo-inverse of this mapping is shown to be representable as a series of products of complex conjugate background Green functions whose expansion coefficients are readily found by inverting a set of \(N\) simultaneous linear algebraic equations in \(N\) unknowns. An expression for the point spread function of the inversion algorithm is computed that is object independent and only a function of the background Green function and the measurement geometry, and thus allows the user to access 'image quality' of the algorithm as a function of these quantities. The paper includes a number of computer simulations illustrating the reconstruction algorithm developed in the paper.

Related Organizations
Keywords

Inverse problems for PDEs, Inverse scattering problems in quantum theory, inversion algorithm, distorted wave Born approximation, scattering potentials, Scattering theory for PDEs, Inverse problems (including inverse scattering) in optics and electromagnetic theory, multistatic data matrix, background Green functions

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
41
Top 10%
Top 10%
Top 10%
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