Implementation and Verification of GNSS Signal Measurement Error Generation Simulator for Signal Quality Monitoring

초록

In this paper, a GNSS error generation simulator for Signal Quality Monitoring (SQM) is implemented by using Matlab based on mathematical models derived from the effect of GNSS signal measurement error. The GNSS signal measurement errors of interest in this paper include three cases such as Evil Wave Form (EWF), Multipath (MP) and Radio Frequency Interference (RFI). In order to verify the validity of the generated error measurements, a simple form of metrics for detecting and monitoring GNSS errors is included in the simulator. The GNSS errors generated by the simulator are added to the GNSS measurement data logged by a commercial GNSS receiver, and then, the SQM is tested for various scenarios of each case configured by scenario setting of the user.