multi-gnss-analysis

MATLAB-based project for analyzing multi-GNSS (GPS, Galileo, GLONASS, BeiDou) data.
Developed as part of experimental studies in guidance and control at Konkuk University.

Features

• Least Squares (LS) positioning
• Coordinate transformations: ECEF ↔ ENU/LLH
• Satellite selection based on elevation angle and C/N0
• Skyplot generation
• NovAtel vs. Android GNSS performance comparison
• Export to Google Earth (KML trajectory)

Directory Structure

multi-gnss-analysis/
├─ matlab/ # Core MATLAB functions (LS.m, xyz2enu.m, etc.)
├─ data/ # RINEX, NovAtel, Android GNSS/IMU logs
├─ output/ # Figures, KML trajectories
└─ README.md

Getting Started

1. Place raw GNSS data into the data/ directory.
2. Run matlab/main.m.
3. Results will be saved in output/ (plots and KML files).

License

MIT