Simulation of Medium-Frequency R-Mode Signal Strength

TL;DR

This paper develops a simulation tool to estimate the signal strength of a medium-frequency R-Mode navigation system, addressing potential failures in GNSS due to interference and ionospheric issues.

Contribution

It introduces a parameter-based performance simulation method for R-Mode systems and demonstrates its application through a case study of Yeongju transmitter.

Findings

Simulation tool effectively estimates R-Mode signal strength.

Parameters derived improve accuracy of performance predictions.

Case study validates the simulation approach.

Abstract

Assuming failure in the global navigation satellite systems due to radio frequency interference and ionospheric anomaly, an R-Mode system, a terrestrial integrated navigation system, is being actively studied for domestic deployment in South Korea. In this study, parameters for an approximate calculation of the received signal strength were obtained and applied to develop a performance simulation tool for a medium-frequency R-Mode system. As a case study, the signal strength from the Yeongju transmitter was simulated using the proposed parameters.