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Fault Detection in Real-Time Kinematic Positioning Using Multiple Reference Stations.

Euiho Kim1, Soomin Lee2

  • 1Department of Mechanical & System Design Engineering, Hongik University, Seoul 04066, Republic of Korea.

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|August 14, 2025
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Summary
This summary is machine-generated.

Multiple-reference-station-based real-time kinematics (MR-RTK) enhances fault detection by using more Global Navigation Satellite System (GNSS) reference stations. Increasing stations up to four significantly reduces missed detection probability in MR-RTK systems.

Keywords:
GNSSRTKfault monitoringinnovation

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Area of Science:

  • Geomatics Engineering
  • Satellite Navigation Systems
  • Geodetic Surveying

Background:

  • Real-time kinematics (RTK) is crucial for precise positioning.
  • Multiple-reference-station-based RTK (MR-RTK) offers improved accuracy and reliability.
  • Assessing fault detection in MR-RTK is vital for safety-critical applications.

Purpose of the Study:

  • To investigate the fault detection capabilities of MR-RTK.
  • To evaluate the impact of additional continuously operating reference stations (CORSs) on missed detection probability.
  • To quantify the reduction in missed detection probability with an increasing number of reference stations.

Main Methods:

  • Utilized Global Navigation Satellite System (GNSS) measurements from multiple reference stations.
  • Employed additional CORS data to assess fault detection.
  • Validated the proposed method with ground rover and CORS data within a 10 km radius.

Main Results:

  • The missed detection probability in MR-RTK was evaluated.
  • Increasing the number of reference stations led to a decrease in missed detection probability.
  • A reduction of up to 55.0% in missed detection probability was observed with four reference stations.

Conclusions:

  • MR-RTK demonstrates enhanced fault detection capabilities.
  • The integration of more reference stations significantly improves the reliability of MR-RTK.
  • The study confirms the benefit of using multiple CORSs for robust GNSS positioning.