Journal: Bericht / Eidgenössische Technische Hochschule Zürich, Institut für Geodäsie und Photogrammetrie
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ETH Zurich, Institute of Geodesy and Photogrammetry
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- Presentations of the 3rd Meeting of the Comitato scientifico italo-svizzero per la geoinformazione (CSISGI)Item type: Conference Proceedings
Bericht / Eidgenössische Technische Hochschule Zürich, Institut für Geodäsie und Photogrammetrie(2008) - Robust estimation applied to correlated GPS phase observationsItem type: Conference Paper
Bericht / Eidgenössische Technische Hochschule Zürich, Institut für Geodäsie und Photogrammetrie ~ First International Symposium on Robust Statistics and Fuzzy Techiques in Geodesy and GIS, ProceedingsWieser, Andreas; Brunner, Fritz K. (2001)Least squares estimation (LS) yields results of low accuracy in the presence of GPS phase corrupting environmental conditions. We present a robust estimator which clearly identities outlying observations caused by obstacles like diagonal cables, branches or leafs. It performes significantly better than standard LS and signal-to-noise ratio dependent weighting if unfavourable signal distortion occors, and equal to LS otherwise. The estimator is realised by an iterated LS algorithm using an equivalent weight matrix. It is a generalisation of the Danish Method to heterogeneous and correlated observations. The excellent performance of the estimator is demonstrated using data from an investigation of GPS signal obstruction. - Exigences pour l’enseignement de la matière "mensuration officielle"; en vue de l’accession au brevet fédéral d’ingénieur géomètreItem type: Report
Bericht / Eidgenössische Technische Hochschule Zürich, Institut für Geodäsie und PhotogrammetrieSimos-Rapin, Béatrice (2007) - Etude de la qualité des coordonnées de la frontière italo-suisseItem type: Report
Bericht / Eidgenössische Technische Hochschule Zürich, Institut für Geodäsie und PhotogrammetrieDeppen, Vincent (2007)
Publications1 - 4 of 4