Development of an R-Mode Simulator Using MF DGNSS Signals

TL;DR

This paper presents the development of an R-Mode simulator that models MF DGNSS signals and skywaves, supporting navigation research using signals of opportunity in scenarios where GPS is unavailable.

Contribution

The study introduces a novel simulator specifically designed for MF DGNSS signals and skywaves, aiding R-Mode navigation system development.

Findings

Successfully modeled MF DGNSS signal characteristics

Simulated skywave effects on R-Mode signals

Provides a tool for R-Mode navigation research

Abstract

With the development of positioning, navigation, and timing (PNT) information-based industries, PNT information is becoming increasingly important. Therefore, various navigation studies have been actively conducted to back up global positioning system (GPS) in scenarios in which it is disabled. Ranging using signals of opportunity (SoOP) has the advantage of infrastructure already being in place. Among them, the ranging mode (R-Mode) is a technology that uses available SoOPs such as a medium frequency (MF) differential global navigation satellite System (DGNSS) signal that has recently been recognized for its potential for navigation and is currently under research. In this study, we developed a signal simulator that considers the characteristics of MF DGNSS signals and skywaves used in R-Mode.