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Multipath minimization method: mitigation through adaptive filtering for machine automation applications / L. Serrano in GPS world, vol 22 n° 7 (July 2011)

Public [article]  inGPS world > vol 22 n° 7 (July 2011) . - pp 42 - 48 Titre : Multipath minimization method: mitigation through adaptive filtering for machine automation applications Type de document : Article/Communication Auteurs : L. Serrano, Auteur ; D. Kim, Auteur ; R. Langley, Auteur Année de publication : 2011 Article en page(s) : pp 42 - 48 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement du signal [Termes IGN] antenne GNSS [Termes IGN] appariement de formes [Termes IGN] filtrage du rayonnement [Termes IGN] guidage de véhicules [Termes IGN] phase GPS [Termes IGN] trajet multiple Résumé : (Auteur) [...] The best way to reduce the effects of multipath is to try avoiding it in the first place by siting the receiver's antenna as low as possible and far away from potential reflectors. But that's not always feasible. [...] At a static site, with an unchanging multipath environment, the signal reflection geometry repeats day to day and the effect of multipath can be reduced by sidereal filtering or "stacking" of coordinate or carrier-phase-residual time series. However, this approach is not viable for scenarios where the receiver and antenna are moving such as in machine control applications. Here an alternative approach is needed. In this month's column, I am joined by two of my UNB colleagues as we look at a technique that uses a pair of antennas on a moving vehicle together with a sophisticated mathematical model, to reduce the level of multipath on carrier-phase observations and thereby improve the accuracy of the vehicle's position. Numéro de notice : A2011-326 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31105 [article]

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