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Developing a GNSS position and timing authentication testbed: GNSS vulnerability and mitigation techniques / Oscar Pozzobon in Inside GNSS, vol 8 n° 1 (January - February 2013) 

Public [article]  inInside GNSS > vol 8 n° 1 (January - February 2013) . - pp 45 - 53 Titre : Developing a GNSS position and timing authentication testbed: GNSS vulnerability and mitigation techniques Type de document : Article/Communication Auteurs : Oscar Pozzobon, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 45 - 53 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement [Termes IGN] mitigation [Termes IGN] positionnement par GNSS [Termes IGN] sécurité [Termes IGN] vulnérabilité Résumé : (Auteur) Ensuring the authenticity of position and time services is becoming a major requirement in many GNSS applications, demonstrating the need of tools to support the design, testing, and validation of protection mechanisms at the user and system levels. This work describes the architecture of the GNSS Authentication and User Protection System Simulator (GAUPSS), an innovative testbed that uses software to control hardware equipment and capable of creating realistic scenarios for GNSS threats. The testbed is designed to expose weaknesses of detection mechanisms in user equipment, test the effectiveness of new receiver-based mitigation techniques, and support analysis of system-level schemes to guarantee the authenticity of received signals. Preliminary results from a validation campaign are presented in this work. Numéro de notice : A2013-165 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32303 [article]

Documents numériques

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Galileo altimetry using AltBOC and RTK techniques / Jürgen Dampf in Inside GNSS, vol 8 n° 1 (January - February 2013) 

Public [article]  inInside GNSS > vol 8 n° 1 (January - February 2013) . - pp 54 - 63 Titre : Galileo altimetry using AltBOC and RTK techniques Type de document : Article/Communication Auteurs : Jürgen Dampf, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 54 - 63 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] hauteur (coordonnée) [Termes IGN] réflectométrie par GNSS [Termes IGN] résolution d'ambiguïté [Termes IGN] signal Galileo Résumé : (Auteur) Reflectometry systems analyze reflected GNSS signals to investigate properties of the reflecting surface and to derive various parameters from that surface. The emergence of additional GNSS systems has increased the availability of multiple signals on multiple frequencies, which provides the opportunity for developing new techniques for applying reflectometry. This article describes an E1/E5a/E5b ground-based altimetry application that has been tested with Galileo signals. The innovative aspect of this system resolves carrier phase ambiguities as in RTK positioning to achieve millimeter accurate surface height measurements, including the use of Galileo AltBOC code measurements for instantaneous decimeter accurate height values. New applications enabled by this technique may include monitoring of large buildings, landslides, or precision passive radar. Numéro de notice : A2013-166 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32304 [article]

Documents numériques

peut être téléchargé a2013-166_janfeb13-wp.pdf Adobe Acrobat PDF