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GNSS network products for post-processing positioning: limitations and peculiarities

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Abstract

Currently, networks for real-time Global Navigation Satellite System positioning (Continuously Operating Reference Stations) are formed by stations with inter-station distances of about 50–60 km. In addition, their products are used for post-processing, particularly where there is no coverage, for the transmission of differential corrections in real time. The purpose of this study is to determine whether Network Real-Time Kinematic networks with larger inter-station distances (of about 100 and 150 km) can improve post-processing positioning. Many experiments were performed over several months using two geodetic and two GIS receivers and a rover placed in a centroid position with respect to the networks considered. The data were post-processed using the nearest station (called Nearest) or a virtual station created from the network software located near the receiver (Virtual RINEX) as a master receiver. The brief title of the work is intended to emphasise the limitations of the results obtained in post-processing when the inter-station distance between the permanent stations is increased and not the limitations related to network products.

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Notes

  1. The so called “noise parameter” is valued as the ratio between \( {\widehat{\sigma}}_0^2 \) final and σ 20 before the least squares treatment. We decided to accept only results with a ratio >1.

  2. Parameter representing the planimetric and temporal visibility of the satellites. We accept only results >4 because these are typical for a relief made by an average user (rarely, we see this value overcome; only when the network satellite fixing is very small and when virtual data are very low).

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Authors and Affiliations

  1. Politecnico di Torino—Corso Duca degli Abruzzi, 24-10129, Turin, Italy

    Paolo Dabove, Ambrogio M. Manzino & Cinzia Taglioretti

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  1. Paolo Dabove
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  2. Ambrogio M. Manzino
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  3. Cinzia Taglioretti
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Correspondence to Cinzia Taglioretti.

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Dabove, P., Manzino, A.M. & Taglioretti, C. GNSS network products for post-processing positioning: limitations and peculiarities. Appl Geomat 6, 27–36 (2014). https://doi.org/10.1007/s12518-014-0122-3

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  • DOI: https://doi.org/10.1007/s12518-014-0122-3

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