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dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorUniversity of Bath. Centre for Space, Atmospheric and Oceanic Science
dc.contributorUniversity of Twente. Faculty of Electrical Engineering, Mathematics and Computer Science
dc.contributorSpectrum Management Department, Radiocommunications Agency Netherlands
dc.contributor.authorWitvliet, Ben A.
dc.contributor.authorAlsina Pagès, Rosa Maria
dc.contributor.authorvan Maanen, Erik
dc.contributor.authorLaanstra, Geert Jan
dc.date.accessioned2020-04-01T11:26:09Z
dc.date.accessioned2023-10-02T06:41:44Z
dc.date.available2020-04-01T11:26:09Z
dc.date.available2023-10-02T06:41:44Z
dc.date.created2019-04
dc.date.issued2019-06
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3416
dc.description.abstractThis article describes the design and validation of deployable low-power probes and sensors to investigate the influence of the ionosphere and the Earth’s magnetic field on radio wave propagation below the plasma frequency of the ionosphere, known as Near Vertical Incidence Skywave (NVIS) propagation. The propagation of waves that are bent downward by the ionosphere is dominated by a bi-refractive mechanism called ‘magneto-ionic propagation’. The polarization of both downward waves depends on the spatial angle between the Earth’s magnetic field and the direction of propagation of the radio wave. The probes and sensors described in this article are needed to simultaneously investigate signal fading and polarization dynamics on six radio wave propagation paths. The 1-Watt probes realize a 57 dB signal-to-noise ratio. The probe polarization is controlled using direct digital synthesis and the cross-polarization is 25–35 dB. The intermodulation-free dynamic range of the sensor exceeds 100 dB. Measurement speed is 3000 samples/second. This publication covers design, practical realization and deployment issues. Research performed with these devices will be shared in subsequent publications.eng
dc.format.extent16 p.cat
dc.language.isoengcat
dc.publisherMDPIcat
dc.relation.ispartofSensors. 2019. Vol. 19, No. 11cat
dc.rights© L'autor/a
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherElectromagnetismecat
dc.subject.otherIonosferacat
dc.titleDesign and Validation of Probes and Sensors for the Characterization of Magneto-Ionic Radio Wave Propagation on Near Vertical Incidence Skywave Pathscat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.identifier.doihttps://doi.org/10.3390/s19112616cat
dc.relation.projectIDinfo:eu-repo/grantAgreement/URL i La Caixa/Projectes recerca PDI/2014-URL-Trac-018cat
dc.relation.projectIDinfo:eu-repo/grantAgreement/URL i SUR del DEC/Projectes recerca PDI/2015-URL-Proj-041cat


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