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Ziolkowski, Marek; Otterbach, Jan Marc; Schmidt, Reinhard; Brauer, Hartmut; Töpfer, Hannes;
Numerical simulations of portable systems for motion-induced eddy-current testing. - In: IEEE transactions on magnetics : a publication of the IEEE Magnetics Society.. - New York, NY : IEEE, ISSN 1941-0069, Bd. 56 (2020), 1, S. 7502204, insges. 4 S.
Krey, Maximilian; Hähnlein, Bernd; Tonisch, Katja; Krischok, Stefan; Töpfer, Hannes;
Automated parameter extraction of ScAlN MEMS devices using an extended Euler-Bernoulli beam theory. - In: Sensors. - Basel : MDPI, ISSN 1424-8220, Volume 20 (2020), issue 4, 1001, Seite 1-19
Weise, Konstantin; Numssen, Ole; Thielscher, Axel; Hartwigsen, Gesa; Knösche, Thomas R.;
A novel approach to localize cortical TMS effects. - In: NeuroImage : a journal of brain function.. - Orlando, Fla. : Academic Press, ISSN 1095-9572, Bd. 209 (2020), 116486, S. 1-17
Sokal, Bruno; Almeida, André L.F.; Haardt, Martin;
Semi-blind receivers for MIMO multi-relaying systems via rank-one tensor approximations. - In: Signal processing : a European journal devoted to the methods and applications of signal processing.. - Amsterdam [u.a.] : Elsevier, Volume 166 (2020), 107254, Seite 1-13
Psiuk, Rafael; Müller, Alfred; Cichon, Daniel; Heuberger, Albert; Brauer, Hartmut; Töpfer, Hannes;
Inductive localization accuracy of a passive 3-D coil in an Industry 4.0 environment. - In: Journal of sensors and sensor systems : JSSS.. - Göttingen : Copernicus Publ., ISSN 2194-878X, Bd. 8 (2019), 1, S. 171-183

In this paper a localization system of a passive 3-D coil is proposed and signal uncertainties due to the 3-D coil's arbitrary orientation are analyzed. The 3-D coil is excited by an alternating primary magnetic field. Geometrically distributed pick-up coils measure the 3-D coil's secondary field. By means of a simulated look-up table that assigns expected voltages from the pick-up coils to the positions of the 3-D coil, the position of the 3-D coil is deduced by a least-squares approach. A basic assumption is that the secondary field is invariant to the orientation of the 3-D coil. This allows a reduction of the computational effort for the look-up table generation and the table search during the localization phase since for each position the field distribution for only one orientation has to be calculated. However, the assumption of invariance to rotation is only valid for a dipole model. In this paper we investigate the localization error introduced by this assumption when using 3-D coils with a geometric extent in an inhomogeneous primary field. Optimized localization methods that decrease the statistical error are proposed. The theoretical results are verified with measurements conducted on a laboratory system.
Iqbal, Naveed; Luo, Jian; Schneider, Christian; Dupleich, Diego; Müller, Robert; Häfner, Stephan; Thomä, Reiner;
Investigating validity of wide-sense stationary assumption in millimeter wave radio channels. - In: IEEE access : practical research, open solutions.. - New York, NY : IEEE, ISSN 2169-3536, Bd. 7 (2019), S. 180073-180082
Kreismann, Jakob; Kim, Jaewon; Bosch, Martí; Hein, Matthias; Sinzinger, Stefan; Hentschel, Martina;
Superdirectional light emission and emission reversal from microcavity arrays. - In: Physical review research. - College Park, MD : APS, ISSN 2643-1564, Bd. 1 (2019), 3, S. 033171-1-033171-5
Krieg, Fabian; Kirchhof, Jan; Kodera, Sayako; Lugin, Sergey; Ihlow, Alexander; Schwender, Thomas; Del Galdo, Giovanni; Römer, Florian; Osman, Ahmad;
SAFT processing for manually acquired ultrasonic measurement data with 3D smartInspect. - In: Insight : non-destructive testing and condition monitoring ; the journal of the British Institute of Non-Destructive Testing.. - Northampton, ISSN 0007-1137, Bd. 61 (2019), 11, S. 663-669
Petkovi´c, Bojana; Dölker, Eva-Maria; Schmidt, Reinhard; Töpfer, Hannes; Haueisen, Jens;
Lorentz force surface integration method: calculation of Lorentz force by means of surface integrals. - In: IEEE transactions on magnetics : a publication of the IEEE Magnetics Society.. - New York, NY : IEEE, ISSN 1941-0069, Bd. 55 (2019), 12, S. 7205307, insges. 7 S.
Nogueira de Sousa, Marcelo; Thomä, Reiner;
Applying random forest and multipath fingerprints to enhance TDOA localization systems. - In: IEEE antennas and wireless propagation letters. - New York, NY : IEEE, ISSN 1548-5757, Bd. 18 (2019), 11, S. 2316-2320