NDLI: An Inverse Fast Multipole Method for Geometry Reconstruction Using Scattered Field Information

Content Provider	IEEE Xplore Digital Library
Author	Alvarez, Y. Martinez-Lorenzo, J.A. Las-Heras, F. Rappaport, C.M.
Copyright Year	1963
Abstract	A novel inverse fast multipole method (FMM) application for accelerating inverse problem solution is presented. The idea is based on the multipole expansion properties of the scattered fields and reconstructed equivalent currents, which allow an easy inversion of the FMM operators, resulting in a forward solution of the inverse problem, i.e., without matrix inversion or cost function minimization. In addition, this technique allows the use of reconstruction domain discretization larger than half a wavelength and overcomes the restriction of having the entire target enclosed by a reconstruction domain, features that also contribute to the reduction of calculation time. Two 3D application examples are presented, highlighting the achieved inverse FMM speed-up with respect to previous inverse scattering methods for geometry reconstruction.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	3351
Ending Page	3360
Page Count	10
File Size	3050710
File Format	PDF
ISSN	0018926X
Volume Number	60
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverse problems Image reconstruction Frequency domain analysis Geometry Reconstruction algorithms Mathematical model Equations sources reconstruction method (SRM) Imaging inverse methods fast multipole method (FMM) near-field characterization
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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