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Study on the Positioning Accuracy of the GNSS/INS System Supported by the RTK Receiver for Railway Measurements

Author

Listed:
  • Mariusz Specht

    (Department of Transport and Logistics, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland)

  • Cezary Specht

    (Department of Geodesy and Oceanography, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland)

  • Andrzej Stateczny

    (Department of Geodesy, Gdańsk University of Technology, Gabriela Narutowicza 11-12, 80-233 Gdańsk, Poland)

  • Paweł Burdziakowski

    (Department of Geodesy, Gdańsk University of Technology, Gabriela Narutowicza 11-12, 80-233 Gdańsk, Poland)

  • Paweł Dąbrowski

    (Department of Geodesy and Oceanography, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland)

  • Oktawia Lewicka

    (Department of Geodesy and Oceanography, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland)

Abstract

Currently, the primary method for determining the object coordinates is positioning using Global Navigation Satellite Systems (GNSS) supported by Inertial Navigation Systems (INS). The main goal of this solution is to ensure high positioning availability, particularly when access to satellite signals is limited (in tunnels, areas with densely concentrated buildings and in forest areas). The aim of this article is to determine whether the GNSS/INS system supported by the RTK receiver is suitable for the implementation of selected geodetic and construction tasks in railway engineering, such as determining the place and extent of rail track deformations (1 cm ( p = 0.95)), the process of a rapid stocktaking of existing rail tracks (3 cm ( p = 0.95)) and for design and construction works (10 cm ( p = 0.95)), as well as what the impact of various terrain obstacles have on the obtained positioning accuracy of the tested system. During the research, one INS was used, the Ekinox2-U by the SBG Systems, which was supported by the Real-Time Kinematic (RTK) receiver. GNSS/INS measurements were conducted on three representative sections varying in terms of terrain obstacles that limit the access to satellite signals during mobile railway measurements in Tricity (Poland). The acquired data allowed us to calculate the basic position accuracy measures that are commonly used in navigation and transport applications. On this basis, it was concluded that the Ekinox2-U system can satisfy the positioning accuracy requirements for rapid stocktaking of existing rail tracks (3 cm ( p = 0.95)), as well as for design and construction works (10 cm ( p = 0.95)). On the other hand, the system cannot be used to determine the place and extent of rail track deformations (1 cm ( p = 0.95)).

Suggested Citation

  • Mariusz Specht & Cezary Specht & Andrzej Stateczny & Paweł Burdziakowski & Paweł Dąbrowski & Oktawia Lewicka, 2022. "Study on the Positioning Accuracy of the GNSS/INS System Supported by the RTK Receiver for Railway Measurements," Energies, MDPI, vol. 15(11), pages 1-17, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:11:p:4094-:d:830421
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    References listed on IDEAS

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    1. Andrzej Stateczny & Cezary Specht & Mariusz Specht & David Brčić & Alen Jugović & Szymon Widźgowski & Marta Wiśniewska & Oktawia Lewicka, 2021. "Study on the Positioning Accuracy of GNSS/INS Systems Supported by DGPS and RTK Receivers for Hydrographic Surveys," Energies, MDPI, vol. 14(21), pages 1-19, November.
    2. Paolo Visconti & Francesco Iaia & Roberto De Fazio & Nicola Ivan Giannoccaro, 2021. "A Stake-Out Prototype System Based on GNSS-RTK Technology for Implementing Accurate Vehicle Reliability and Performance Tests," Energies, MDPI, vol. 14(16), pages 1-22, August.
    3. Krzysztof Naus & Piotr Szymak & Paweł Piskur & Maciej Niedziela & Aleksander Nowak, 2021. "Methodology for the Correction of the Spatial Orientation Angles of the Unmanned Aerial Vehicle Using Real Time GNSS, a Shoreline Image and an Electronic Navigational Chart," Energies, MDPI, vol. 14(10), pages 1-24, May.
    4. Mariusz Specht & Cezary Specht & Andrzej Wilk & Władysław Koc & Leszek Smolarek & Krzysztof Czaplewski & Krzysztof Karwowski & Paweł S. Dąbrowski & Jacek Skibicki & Piotr Chrostowski & Jacek Szmaglińs, 2020. "Testing the Positioning Accuracy of GNSS Solutions during the Tramway Track Mobile Satellite Measurements in Diverse Urban Signal Reception Conditions," Energies, MDPI, vol. 13(14), pages 1-19, July.
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