An Experimental Performance Assessment of Galileo OSNMA
Toni Hammarberg1, José M Vallet García1, Jarno N Alanko1
1Finnish Geospatial Research Institute, 02150 Espoo, Finland.
Sensors (Basel, Switzerland)
|January 23, 2024
Summary
Galileo Open Service Navigation Message Authentication (OSNMA) provides secure positioning. Our study analyzes OSNMA performance, revealing key indicators and factors affecting authentication success in static conditions.
Area of Science:
- * Navigation systems engineering
- * Satellite communication security
Background:
- * The Galileo satellite navigation system is evolving with enhanced security features.
- * Navigation Message Authentication (OSNMA) aims to secure satellite signals against spoofing.
Purpose of the Study:
- * To present observed operational data and key performance indicators (KPIs) for Galileo OSNMA.
- * To analyze authentication events, fix times, and position accuracy.
- * To investigate the impact of satellite visibility on OSNMA performance.
Main Methods:
- * Analysis of a ten-day static dataset collected in southern Finland.
- * Utilization of an in-house developed OSNMA implementation.
- * Monitoring of authentication status, dropped pages, and cyclic redundancy checks.
Main Results:
- * Detailed timeline of authentication-related events presented.
- * KPIs including simultaneous authenticated satellites, time to first authenticated fix, and percentage of authenticated fixes reported.
- * Accuracy of authenticated position solutions evaluated.
- * Influence of satellite visibility on performance metrics studied.
Conclusions:
- * OSNMA demonstrates operational capability with measurable KPIs.
- * Satellite visibility significantly impacts authentication success and performance.
- * Understanding failure patterns is crucial for future OSNMA enhancements.
Related Concept Videos
01:25Galvanometer
2.2K
Common devices, including car instrument panels, battery chargers, and inexpensive electrical instruments, measure potential difference (voltage), current, or resistance using a d'Arsonval galvanometer. This electromechanical instrument is also known as a moving coil galvanometer.
The galvanometer consists of two concave-shaped permanent magnets, providing a uniform radial magnetic field in the annular region. In the center, a pivoted coil of fine copper wire is placed in the uniform...
The galvanometer consists of two concave-shaped permanent magnets, providing a uniform radial magnetic field in the annular region. In the center, a pivoted coil of fine copper wire is placed in the uniform...
2.2K
01:26Errors in Global Positioning System
46
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
46
01:12Instrument Calibration
192
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
192
01:11Glassware Calibration
240
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
240
01:13Multiple Comparison Tests
3.9K
Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
3.9K
01:30Types of Global Positioning System Surveys
58
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
58