Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/10880
DC FieldValueLanguage
dc.date.accessioned2018-02-28T12:33:58Zen
dc.date.available2018-02-28T12:33:58Zen
dc.date.issued2015en
dc.identifier.urihttp://hdl.handle.net/2122/10880en
dc.description.abstractIn the last years, the use of GNSS (Global Navigation Satellite Systems) data has been gradually increasing, for both scientific studies and technological applications. High-rate GNSS data, able to generate and output 50-Hz phase and amplitude samples, are commonly used to study electron density irregularities within the ionosphere. Ionospheric irregularities may cause scintillations, which are rapid and random fluctuations of the phase and the amplitude of the received GNSS signals. For scintillation analysis, usually, GNSS signals observed at an elevation angle lower than an arbitrary threshold (usually 15 , 20 or 30 ) are filtered out, to remove the possible error sources due to the local environment where the receiver is deployed. Indeed, the signal scattered by the environment surrounding the receiver could mimic ionospheric scintillation, because buildings, trees, etc. might create diffusion, diffraction and reflection. Although widely adopted, the elevation angle threshold has some downsides, as it may under or overestimate the actual impact of multipath due to local environment. Certainly, an incorrect selection of the field of view spanned by the GNSS antenna may lead to the misidentification of scintillation events at low elevation angles. With the aim to tackle the non-ionospheric effects induced by multipath at ground, in this paper we introduce a filtering technique, termed SOLIDIFY (Standalone OutLiers IDentIfication Filtering analYsis technique), aiming at excluding the multipath sources of non-ionospheric origin to improve the quality of the information obtained by the GNSS signal in a given site. SOLIDIFY is a statistical filtering technique based on the signal quality parameters measured by scintillation receivers. The technique is applied and optimized on the data acquired by a scintillation receiver located at the Istituto Nazionale di Geofisica e Vulcanologia, in Rome. The results of the exercise show that, in the considered case of a noisy site under quiet ionospheric conditions, the SOLIDIFY optimization maximizes the quality, instead of the quantity, of the data.en
dc.language.isoEnglishen
dc.relation.ispartofAdvances in Space Researchen
dc.relation.ispartofseries/56 (2015)en
dc.titleGNSS data filtering optimization for ionospheric observationen
dc.typearticleen
dc.description.statusPublisheden
dc.description.pagenumber2552–2562en
dc.identifier.doi10.1016/j.asr.2015.10.002en
dc.description.obiettivoSpecifico2A. Fisica dell'alta atmosferaen
dc.description.journalTypeJCR Journalen
dc.contributor.authorD’Angelo, G.en
dc.contributor.authorSpogli, Lucaen
dc.contributor.authorCesaroni, Claudioen
dc.contributor.authorSgrigna, V.en
dc.contributor.authorAlfonsi, Lucillaen
dc.contributor.authorAquino, M. H. O.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptDipartimento di Fisica, Università “La Sapienza”, Roma, Italy-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptInstitute of Engineering Surveying and Space Geodesy (IESSG), Nottingham, UK-
crisitem.author.orcid0000-0003-2310-0306-
crisitem.author.orcid0000-0003-2268-4389-
crisitem.author.orcid0000-0002-1806-9327-
crisitem.author.orcid0000-0003-2733-4716-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
Appears in Collections:Article published / in press
Files in This Item:
File Description SizeFormat Existing users please Login
2015_DAngelo_et_al_Filtering_ADS.pdf5.45 MBAdobe PDF
Show simple item record

WEB OF SCIENCETM
Citations

3
checked on Feb 10, 2021

Page view(s)

135
checked on Mar 27, 2024

Download(s)

8
checked on Mar 27, 2024

Google ScholarTM

Check

Altmetric