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Degradation of GPS performance in geomagnetically disturbed conditions / E.L. Afraimovitch in GPS solutions, vol 7 n° 2 (August 2003)  

Public [article]  inGPS solutions > vol 7 n° 2 (August 2003) . - pp 109 - 119 Titre : Degradation of GPS performance in geomagnetically disturbed conditions Type de document : Article/Communication Auteurs : E.L. Afraimovitch, Auteur ; V.V. Demyanov, Auteur Année de publication : 2003 Article en page(s) : pp 109 - 119 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] analyse comparative [Termes IGN] géomagnétisme [Termes IGN] instrumentation Ashtech [Termes IGN] instrumentation Trimble [Termes IGN] perturbation [Termes IGN] récepteur GPS [Termes IGN] signal GPS [Termes IGN] tempête magnétique Résumé : (Auteur) During geomagnetically disturbed conditions, the accuracy and quality of GPS performance is impaired. Unlike geomagnetically quiet conditions, magnetic storm conditions are accompanied by an increase in the spherical standard deviation of the position determination, for all types of GPS receivers. In magnetic storm conditions there is an increase in the number of slips of the one-frequency mode of coordinate determination. We have identified an unambiguous tendency of the slip density of the one-frequency mode to increase for the ASHTECH and TRIMBLE GPS receivers. For the AOA receivers this tendency was not observed in any of the cases considered. The slip density in the two-frequency mode of coordinate determination in magnetic storm conditions increases most dramatically for the ASHTECH receivers. Regarding the TRIMBLE receivers, there is a similar, but less clearly pronounced, picture. No slips of the two-frequency mode were detected for the AOA receivers in the cases under consideration. Numéro de notice : A2003-371 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1007/s10291-003-0053-7 En ligne : https://doi.org/10.1007/s10291-003-0053-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26451 [article]