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Analysis of EGNOS System Accuracy in Mobile Testing, Warsaw

This study evaluates EGNOS system accuracy against GPS, improvements, and receiver performance. Findings show EGNOS improved accuracy in Warsaw but didn't in some instances. Commercial receivers lack SBAS signal reception. Further testing aims to integrate mobile testing with an INU for enhanced results.

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Analysis of EGNOS System Accuracy in Mobile Testing, Warsaw

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  1. Accuracy Analysis of the EGNOS System During Mobile Testing Douglas Aguilar Leszek Jaworski Marcin Kolodziejczak Warsaw, Poland

  2. Mobile GPS Laboratory

  3. Test Route - 10 km

  4. Test Objectives • Objectives • Check accuracy corrections of the EGNOS (PRN 126) system against GPS signals • Compare integrity and availability of GPS and EGNOS (PRN 126) signals

  5. Test Dates - 2007

  6. Septentrio X-Coordinate Deviation 15 Deg. Mask – 4 April

  7. Septentrio Y-Coordinate Deviation 15 Deg. Mask – 4 April

  8. Septentrio Height Deviation 15 Deg. Mask – 4 April

  9. CSI X-Coordinate Deviation 15 Deg. Mask – 4 April

  10. CSI Y-Coordinate Deviation 15 Deg. Mask – 4 April

  11. CSI Height Deviation 15 Deg. Mask – 4 April

  12. Septentrio X-Coordinate Deviation 0 Deg. Mask – 17 April

  13. CSI X-Coordinate Deviation0 Deg. Mask – 17 April

  14. Septentrio X-Coordinate Deviation 0 Deg. Mask – 16 May

  15. Septentrio X-Coordinate Deviation 0 Deg. Mask – 16 May

  16. Septentrio Y-Coordinate Deviation 0 Deg. Mask – 4 April

  17. CSI Y-Coordinate Deviation 0 Deg. Mask – 4 April

  18. Septentrio Y-Coordinate Deviation 0 Deg. Mask – 16 May

  19. Septentrio Y-Coordinate Deviation 0 Deg. Mask – 16 May

  20. Static - GPS vs. PRN126, X-Coordinate22 May

  21. Static - GPS vs. PRN126, Y-Coordinate22 May

  22. Static - GPS vs. PRN126, Height22 May

  23. Accuracy Statistics

  24. Accuracy Statistics

  25. Conclusions • Availability in Warsaw • Analyzing 10 days of static testing has shown EGNOS availability at 98% of the time • Accuracy in Warsaw • Overall, EGNOS improved accuracy • During some observations EGNOS did not improve GPS accuracy • Receiver used less satellites with EGNOS • A minimum of three RIMS stations need to monitor the same GPS satellite to provide EGNOS corrections

  26. Conclusions • Commercial Receivers • Some commercial receivers have EGNOS options but do not receive SBAS signals • Further Testing • Find popular commercial receivers that provide EGNOS corrections • Integrate mobile testing with an INU

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