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Precise point positioning: a powerful technique with a promising future / Sunil Bisnath in GPS world, vol 20 n° 4 (April 2009)

Public [article]  inGPS world > vol 20 n° 4 (April 2009) . - pp 43 - 50 Titre : Precise point positioning: a powerful technique with a promising future Type de document : Article/Communication Auteurs : Sunil Bisnath, Auteur ; Yang Gao, Auteur Année de publication : 2009 Article en page(s) : pp 43 - 50 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement [Termes IGN] positionnement cinématique en temps réel [Termes IGN] positionnement par GPS [Termes IGN] positionnement ponctuel précis Résumé : (Editeur) [...] In the intervening decade, RTK - or real time kinematic - positioning has become an industry standard procedure in surveying, machine control, and other high-precision applications. RTK makes use of carrier-phase and pseudorange measurements recorded at a (usually) fixed reference location with known coordinates and transmitted in real time to user's rover receivers using a radio link of some kind. [...] In this month 's colomn, we take a look at the technique of precise point positioning (PPP). Like RTK, PPP makes use of ambiguous carrier-phase measurements but only from the user's receiver. Rather than measurements from a reference receiver, it needs ultra-precise (and accurate) satellite orbit and clock information such as that provided by the international GNSS Service. Currently, there are issues with how long solutions take to converge and the difficulty in resolving the ambiguities, for example, but research is targeting these and other practical issues. How close is PPP to prime time? Read on. Numéro de notice : A2009-124 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29754 [article]

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