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Phase wind-up analysis: assessing real-time kinematic performance / D. Kim in GPS world, vol 17 n° 9 (September 2006)

Public [article]  inGPS world > vol 17 n° 9 (September 2006) . - pp 58 - 64 Titre : Phase wind-up analysis: assessing real-time kinematic performance Type de document : Article/Communication Auteurs : D. Kim, Auteur ; R.B. Langley, Auteur ; L. Serrano, Auteur Année de publication : 2006 Article en page(s) : pp 58 - 64 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale [Termes IGN] antenne GPS [Termes IGN] GPS en mode cinématique [Termes IGN] mesurage de phase [Termes IGN] phase GPS [Termes IGN] positionnement cinématique en temps réel Résumé : (Auteur) [...] RTK systems, in common with other techniques, are susceptible to biases and errors such as ionospheric and tropospheric refraction along with line-of-sight-dependent phase-measurement effects including multipath, antenna phase-center variation, and carrier-phase phase wind-up. This latter phenomenon may not be familiar to all readers. It is a bias introduced into carrier-phase measurements by the rotation of a GPS receiver’s antenna. There is also a contribution from the rotation of a GPS satellite’s antenna as it orbits about the Earth. In developing an RTK-based vehicle navigation system at the University of New Brunswick (UNB), we have observed a few instances where the phase wind-up due to rotation of the rover receiving antenna can significantly degrade system performance. In this month’s column, we’ll look at carrier-phase wind-up, introducing three wind-up observables that allowed us to perform qualitative assessments of its effects on the UNB RTK system. One motivation behind such an assessment is to determine whether or not we need to proceed to the next step of implementing algorithms to correct for the effects of phase wind-up. I am joined by Dr. Don Kim, the chief architect and developer of the UNB RTK system, and graduate student Luis Serrano. Copyright Questex Media Group Inc Numéro de notice : A2006-418 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28142 [article]

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