About: An Entropy Regularization Method Applied to the Identification of Wave Distribution Function for an ELF Hiss Event

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About: An Entropy Regularization Method Applied to the Identification of Wave Distribution Function for an ELF Hiss Event Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	An entropy regularization algorithm (ERA) has been developed to compute the waveenergy density from electromagnetic field measurements. It is based on the wave distribution function (WDF)concept. To assess its suitability and efficiency, the algorithm is applied to experimental data that has already been analyzed using other inversion techniques. The FREJA satellite data that is used consists of six spectral matrices corresponding to six time-frequency points of an ELF hiss-event spectrogram. The WDF analysis is performed on these six points and the results are compared with those obtained previously. A statistical stability analysis confirms the stability of the solutions. The WDF computation is fast and without any prespecified parameters. The regularization parameter has been chosen in accordance with the Morozov’s discrepancy principle. The Generalized Cross Validation and L-curve criterions are then tentatively used to provide a fully datadriven method. An entropy regularization algorithm (ERA) has been developed to compute the waveenergy density from electromagnetic field measurements. It is based on the wave distribution function (WDF)concept. To assess its suitability and efficiency, the algorithm is applied to experimental data that has already been analyzed using other inversion techniques. The FREJA satellite data that is used consists of six spectral matrices corresponding to six time-frequency points of an ELF hiss-event spectrogram. The WDF analysis is performed on these six points and the results are compared with those obtained previously. A statistical stability analysis confirms the stability of the solutions. The WDF computation is fast and without any prespecified parameters. The regularization parameter has been chosen in accordance with the Morozov’s discrepancy principle. The Generalized Cross Validation and L-curve criterions are then tentatively used to provide a fully datadriven method. (en) Regularizace vlnové distribuční funkce pro případ ELF sykotu. (cs)
Title	An Entropy Regularization Method Applied to the Identification of Wave Distribution Function for an ELF Hiss Event Regularizace vlnové distribuční funkce pro případ ELF sykotu (cs) An Entropy Regularization Method Applied to the Identification of Wave Distribution Function for an ELF Hiss Event (en)
skos:prefLabel	An Entropy Regularization Method Applied to the Identification of Wave Distribution Function for an ELF Hiss Event Regularizace vlnové distribuční funkce pro případ ELF sykotu (cs) An Entropy Regularization Method Applied to the Identification of Wave Distribution Function for an ELF Hiss Event (en)
skos:notation	RIV/68378289:_____/06:00045492!RIV07-AV0-68378289
http://linked.open.../vavai/riv/strany	A06213/1;A06213/11
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1P05ME811), Z(AV0Z30420517)
http://linked.open...iv/cisloPeriodika	A6
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Santolík, Ondřej
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky atmosféry AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	464789
http://linked.open...ai/riv/idVysledku	RIV/68378289:_____/06:00045492
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Space physics; Waves in plasmas (en)
http://linked.open.../riv/klicoveSlovo	Space physics Waves in plasmas
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[7ACEB9E83620]
http://linked.open...i/riv/nazevZdroje	Journal of Geophysical Research
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Investigation of plasma waves in the magnetosphere
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	111
http://linked.open...iv/tvurceVysledku	Santolík, Ondřej Trotignon, J. G. Deferaudy, H. Prot, O.
http://linked.open...n/vavai/riv/zamer	Studium atmosférického obalu Země v interakci s pozemskými a kosmickými vlivy
issn	0148-0227
number of pages	11 (xsd:int)

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