Potential of GPS Common Clock Single-differences for Deformation Monitoring

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Schön, S.; Pham, H.K.; Kersten, T.; Leute, J.; Bauch, A.: Potential of GPS Common Clock Single-differences for Deformation Monitoring. In: Journal of Applied Geodesy 10 (2016), Nr. 1, S. 45-52. DOI: https://doi.org/10.1515/jag-2015-0029

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Sum total of downloads: 281

Global satellite navigation systems (GNSS) are a standard measurement device for deformation monitoring. In many applications, double-differences are used to reduce distance dependent systematic effects, as well as to eliminate the receiver and satellites clock errors. However, due to the navigation principle of one way ranging used in GPS, the geometry of the subsequent adjustment is weakened. As a result, the height component is generally determined three times less precisely than the horizontal coordinates. In addition, large correlations between the height and elevation dependent effects exist such as tropospheric refraction, mismodelled phase center variations, or multipath which restricts the attainable accuracy. However, for a kinematic analysis, i. e. for estimating high rate coordinate time series, the situation can be significantly improved if a common clock is connected to different GNSS receivers in a network or on a baseline. Consequently, between-station single-differences are sufficient to solve for the baseline coordinates. The positioning geometry is significantly improved which is reflected by a reduction of the standard deviation of kinematic heights by about a factor 3 underlining the benefits of this new approach. Real data from baselines at the Physikalisch-Technische Bundesanstalt campus at Braunschweig where receivers are connected over 290 m via an optical fiber link to a common clock was analysed. © 2016 Walter de Gruyter GmbH, Berlin/Munich/Boston.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Bauingenieurwesen und Geodäsie

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pos. country downloads
total perc.
1 image of flag of Germany Germany 173 61.57%
2 image of flag of China China 35 12.46%
3 image of flag of United States United States 21 7.47%
4 image of flag of Vietnam Vietnam 7 2.49%
5 image of flag of Portugal Portugal 5 1.78%
6 image of flag of Netherlands Netherlands 5 1.78%
7 image of flag of France France 5 1.78%
8 image of flag of Canada Canada 5 1.78%
9 image of flag of Hong Kong Hong Kong 4 1.42%
10 image of flag of No geo information available No geo information available 3 1.07%
    other countries 18 6.41%

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