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

## TL;DR

This paper explores how using multiple reference stations improves fault detection in GPS positioning systems.

## Contribution

The study introduces a method to reduce missed detection probability in MR-RTK by using multiple reference stations.

## Key findings

- Using up to four reference stations reduced missed detection probability by up to 55.0%.
- The method was validated with test data from a ground rover and nearby CORSs.
- MR-RTK leverages multiple reference stations to improve fault detection in real-time.

## Abstract

Multiple-reference-station-based real-time kinematics (MR-RTK) is an advanced RTK technique that leverages global navigation satellite system (GNSS) measurements from multiple reference stations and their known baselines. This study investigates the fault detection capabilities of MR-RTK by employing additional measurements from continuously operating reference stations (CORSs) to evaluate the probability of missed detection. The proposed method was validated using test data from a ground rover and a few CORSs within a 10 km radius. The test results show that the missed detection probability decreased by up to 55.0% as the number of reference stations increased up to four.