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EGNOS data collection in Budapest

J. Ádám, B. Takács, K. Kratochvilla, P. Zaletnyik, & Sz. Rózsa – BUTE R. Farnworth & S. Soley - Eurocontrol EEC P.B. Ober - Integricom. EGNOS data collection in Budapest. Overview. Eurocontrol GNSS-1 Operational Validation The data collection network

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EGNOS data collection in Budapest

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  1. J. Ádám, B. Takács, K. Kratochvilla, P. Zaletnyik, & Sz. Rózsa – BUTE R. Farnworth & S. Soley - Eurocontrol EEC P.B. Ober - Integricom EGNOS data collection in Budapest

  2. Overview • Eurocontrol • GNSS-1 Operational Validation • The data collection network • Overview of data collection ‘products’

  3. EUROCONTROL • European Organisation for the Safety of AirNavigation • 31members

  4. Mission Requirements To Operational Validation European Tri-partite GroupEGNOS Mission Requirements ETG ‘Mission’ Validation Civil Aviation (EUROCONTROL) Land/Maritime (CEU) Land/Maritime (CEU) Civil Aviation (EUROCONTROL, Future Operator) ESA System Requirements ESA System Validation EGNOS System Design & Development

  5. Eurocontrol Activities • EGNOS/ESTB Data Evaluation Tools • Integrity Validation Studies • Conceptual validation • Data validation • Flight Trials at various locations • Bretigny, Nice, Sion • Static Data Collection • ESTB/EGNOS Data Collection Network

  6. Data Collection Network • Prepare for EGNOS Operational Validation • Gather experience with ESTB/EGNOS • Receivers • Tools • Results • Learn what anomalies can be identified • Compare results from different locations • Establish regular monitoring tools • Validate Pegasus results

  7. Nodes of the network Tromsö ESTB reference station (RIMS) EURIDIS reference station ESTB processing facilities (CPF, MCC) NLES Höfn Hönefoss IOR PRN131 Rotterdam Scilly ESTB Data Collection NT Toulouse Lisboa GOV Working Group Barcelona Fucino Ankara Palma Malaga Kourou Matera Canaries Hartebeesthoek

  8. Activities • Collect ESTB/EGNOS Data and Evaluate them from different sites in Europe • Group of experts to support: • the development of the tools need in the future EGNOS Operational Validation • definition of data collection procedures • Baseline for the future static campaign in the GOV Plan – extended with the ANSP participation

  9. Activities (2) • Data collection at regular intervals - full flexibility • Regular performance reports - Web site • Recommendations for the tools - PEGASUS • Deep analysis on specific subjects/anomalies • VPL trend analysis • Protection Levels and MT 25 in PEGASUS • High fast corrections values, UDREI holes (14/02/03) • Ionospheric tests - ESTB corrections monitoring • ESTB Performance against losing satellites • MIs appearing due to bad ionospheric corrections • Multipath analysis…

  10. Why BUTE? • Extension of network to the east • Broad GNSS experience: • GPS education since 1988/1995 • Operating a permanent station since 2000 • especially for surveyors • participating in the EUREF IP project • http: //stargate.fgt.bme.hu/indexen.html • Experience with many different receiver brands • Trimble • Geotracer • Leica • Novatel

  11. Why Integricom? • Teaming with BUTE • Participation in GOV activities • EGNOS Integrity concept • EGNOS data-based validation • Specialisation in integrity-related issues • Integrity seen as most critical performance parameter • Background in use of GNSS for aviation

  12. Data collection at BUTE Dept. of Surveying and Geodesy GPS antennas

  13. The Novatel antenna

  14. Station configuration Novatel Millenium WAAS receiver Continuous logging Novatel Pinwheel G-600 antenna Antenna pole on the chimney

  15. Multipath assessment Source of multipath? MP plot (made by Delft)

  16. Data collection products (1) • ‘First glance’ • Check observed perfor-mance against requirement • Single site/one day • Test fail/pass

  17. Data collection products (2a) • Anomaly investigation • Example: integrity Integrity failures: HPE>HPL

  18. Recent results

  19. Recent results (2)

  20. Data collection products (2b) • Pseudorange correction oscillations broadcast in MT02 and MT03 • UDREI<12 • IODF<3

  21. Pref-Res PRN16 PRN11 Prefit- residuals PRN02 Data collection products (3a) Large number of MI VPE/VPL 20:40 19:17

  22. PRN16: C1-Rho (shifted) PRN16: L1-L2 (shifted) STEC (m L1) PRN16: P2-P1 (shifted) PRN16: STEC +/- UIRE (ESTB) 20:40 19:17 Data collection products (3b) Barcelona, November 20th, 2003 STEC (m L1)

  23. 18:00 20:00 October 29-31th November 20-21th 22:00 Extreme Very High Kp index from Oct. 17th up to Dec. 1st2003 High Medium LOW Data collection products (3c)

  24. Concluding remarks • BUTE and Integricom involved in EGNOS data collection and data analysis • Eurocontrol GOV activities • Building expertise on EGNOS within a network of 6 European Universities and many ASP-s • Ready to take step to Galileo

  25. ??P.B.Ober@Integricom.NLBence@Agt.Bme.HU

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