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dc.creatorNina, Aleksandra
dc.creatorNico, Giovanni
dc.creatorOdalović, Oleg
dc.creatorČadež, Vladimir M.
dc.creatorTodorović-Drakul, Miljana
dc.creatorRadovanović, Milan
dc.creatorPopović, Luka Č.
dc.date.accessioned2019-10-29T12:33:38Z
dc.date.available2020-10-08
dc.date.issued2019
dc.identifier.issn1545-598X
dc.identifier.urihttps://grafar.grf.bg.ac.rs/handle/123456789/1760
dc.description.abstractWe investigate the influence of the perturbed (by a solar X-ray flare) ionospheric D-region on the GNSS and SAR signals. We calculate a signal delay in the D-region based on the low ionospheric monitoring by very low frequency (VLF) radio waves. Results show that the ionospheric delay in the perturbed D-region can be important and, therefore, should be taken into account in modeling the ionospheric influence on the GNSS and SAR signal propagation and in calculations relevant for space geodesy. This conclusion is significant because numerous existing models ignore the impact of this ionospheric part on the GNSS and SAR signals due to its small electron density which is true only in quiet conditions and can result in significant errors in space geodesy during intensive ionospheric disturbances.en
dc.language.isoensr
dc.publisherIEEE (Institute of Electrical and Electronics Engineers)sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/36020/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/44002/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176004/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/47007/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176002/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176001/RS//sr
dc.relationOT4CLIMA Project, Italian Ministry of Education, University and Researchsr
dc.relationCOST Action TD1403sr
dc.relationCost Action CA15211sr
dc.relationVarSITI Projectsr
dc.rightsembargoedAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceIEEE Geoscience and Remote Sensing Letterssr
dc.subjectIonospheresr
dc.subjectVery Low Frequency (VLF) radio signalssr
dc.subjectGlobal Navigation Satellite Systems (GNSS)sr
dc.subjectSynthetic Aperture Radar (SAR)sr
dc.subjectSAR interferometry (InSAR)sr
dc.titleGNSS and SAR Signal Delay in Perturbed Ionospheric D-Region During Solar X-Ray Flaresen
dc.typearticlesr
dc.rights.licenseBY-NC-NDsr
dc.citation.rankM21~
dc.identifier.doi10.1109/LGRS.2019.2941643
dc.identifier.fulltexthttps://grafar.grf.bg.ac.rs/bitstream/id/6769/LGRS2941643_2.pdf
dc.identifier.scopus2-s2.0-85087417061
dc.identifier.wos000543724300019
dc.type.versionacceptedVersionsr


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