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Inverse scattering for determination of twist in uniaxial cylinders
Växjö University, Faculty of Mathematics/Science/Technology, School of Mathematics and Systems Engineering.
Växjö University, Faculty of Mathematics/Science/Technology, School of Mathematics and Systems Engineering.ORCID iD: 0000-0002-7018-6248
Växjö University, Faculty of Mathematics/Science/Technology, School of Mathematics and Systems Engineering.
2007 (English)In: EMB 07 — Proceedings: Swedish National Conference on Computational Electromagnetics, Lunds universitet , 2007, p. 177-184Conference paper, Published paper (Other academic)
Abstract [en]

An inverse microwave scattering theory is presented for the determination of twist of a homogeneous locally reacting uniaxial cylinder. The prime application is remote measurements of spiral grain of trees and logs. From practical considerations, the transmitting and receiving antennas are near each other

requiring a three-dimensional modelling. First a general theory is developed. Then asymptotic formulae are derived assuming that the distance from the antennas to the cylinder is many wavelengths and many cylinder radii granting a substantial reduction of the numerical complexity compared to the twodimensional case. Finally, the error of the determined twist angle as function of inherent parameters of the problem is given using a Cramer Rao analysis.

Place, publisher, year, edition, pages
Lunds universitet , 2007. p. 177-184
Research subject
Physics, Electrotechnology
Identifiers
URN: urn:nbn:se:vxu:diva-3244OAI: oai:DiVA.org:vxu-3244DiVA, id: diva2:203200
Available from: 2008-01-08 Created: 2008-01-08 Last updated: 2017-01-10Bibliographically approved

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Nilsson, BörjeNordebo, SvenSjödén, Therese

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