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Statements

Subject Item
n2:RIV%2F00216305%3A26220%2F04%3APU44171%21RIV11-MSM-26220___
rdf:type
n15:Vysledek skos:Concept
dcterms:description
The electrical impedance tomography is a means how to localize inhomogeneities in some bordered homogenous medium when the object under investigation is accessible to the measuring only at specific points of its boundary. In the method various optimization techniques are in use. For their successful application it is useful to determine Jacobian which helps to accelerate an iterative process. In the paper two ways of Jacobian calculation are compared above all from the point of view of the CPU time. Namely, the first method is based on the reciprocity theorem application, the second one then on the direct differentiation of the nodal-analysis matrix equation. Both methods utilize a precomputed properly chosen finite-element mesh, and has been programmed in the Matlab language environment. The electrical impedance tomography is a means how to localize inhomogeneities in some bordered homogenous medium when the object under investigation is accessible to the measuring only at specific points of its boundary. In the method various optimization techniques are in use. For their successful application it is useful to determine Jacobian which helps to accelerate an iterative process. In the paper two ways of Jacobian calculation are compared above all from the point of view of the CPU time. Namely, the first method is based on the reciprocity theorem application, the second one then on the direct differentiation of the nodal-analysis matrix equation. Both methods utilize a precomputed properly chosen finite-element mesh, and has been programmed in the Matlab language environment.
dcterms:title
Comparative Study of Jacobian Calculation Techniques in Electrical Impedance Tomography Comparative Study of Jacobian Calculation Techniques in Electrical Impedance Tomography
skos:prefLabel
Comparative Study of Jacobian Calculation Techniques in Electrical Impedance Tomography Comparative Study of Jacobian Calculation Techniques in Electrical Impedance Tomography
skos:notation
RIV/00216305:26220/04:PU44171!RIV11-MSM-26220___
n3:aktivita
n9:P n9:V n9:Z
n3:aktivity
P(GA102/03/1108), V, Z(MSM 262200011), Z(MSM 262200022)
n3:dodaniDat
n18:2011
n3:domaciTvurceVysledku
n20:9762175
n3:druhVysledku
n4:D
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
558172
n3:idVysledku
RIV/00216305:26220/04:PU44171
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Jacobian, Sensitivity, Electrical impedance tomography, Reciprocity theorem, Nodal analysis method
n3:klicoveSlovo
n11:Sensitivity n11:Nodal%20analysis%20method n11:Reciprocity%20theorem n11:Electrical%20impedance%20tomography n11:Jacobian
n3:kontrolniKodProRIV
[94A55EE36EB7]
n3:mistoKonaniAkce
Zakopane
n3:mistoVydani
Zakopane
n3:nazevZdroje
Proceedings of VI. International Workshop %22Computational Problems of Electrical Engineering%22
n3:obor
n17:JA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n12:GA102%2F03%2F1108
n3:rokUplatneniVysledku
n18:2004
n3:tvurceVysledku
Brančík, Lubomír
n3:typAkce
n14:EUR
n3:zahajeniAkce
2004-09-01+02:00
n3:zamer
n8:MSM%20262200022 n8:MSM%20262200011
s:numberOfPages
4
n22:hasPublisher
Neuveden
n6:isbn
83-916444-4-8
n21:organizacniJednotka
26220