1. ? Geodetski Inštitut Slovenije SLOVENIAN GPS NETWORK SIGNAL: SLOVENIA-GEODESY-NAVIGATION- LOCATION Dalibor RADOVAN Geodetic Institute of Slovenia Ljubljana

2. ? Geodetski Inštitut Slovenijewww.geod-is.si SIGNAL National GPS network under construction Part of geospatial infrastructure Main user: Geodesy Main task: Transition to a new coordinate system Open to other users: Navigation, facilities management, GIS

3. ? Geodetski Inštitut Slovenijewww.geod-is.si NATIONAL COORDINATE SYSTEM Bessel ellipsoid Gauss-Krueger projection Locally deformed classic triangulation – Datum 1948 Transformation parameters to/from ETRS 89 available for the entire country and locally

4. ? Geodetski Inštitut Slovenijewww.geod-is.si NEW COORDINATE SYSTEM National GPS network SIGNAL + Homogenized network of points in ETRS 89 (EUREF campaigns & additional points) + Classic traingulation in transition time

5. ? Geodetski Inštitut Slovenijewww.geod-is.si REMINDER Slovenia: 20.000 km2 2.000.000 inhabitants

6. ? Geodetski Inštitut Slovenijewww.geod-is.si ORGANIZATION Surveying and Mapping Authority (SMA) - funds and organization Geodetic Institute of Slovenia - technical coordination and management (from 2001 on) 46 SMA branch offices & 150 accredited private companies - execution of geodetic works on local level Faculty for Civil Engineering & Geodesy - research and consultancy

7. ? Geodetski Inštitut Slovenijewww.geod-is.si CURRENT STATUS OF GPS NETWORK Activities (re)started as late as 2001 4 permanent stations + 1 private in networked operation 1 of them included in EUREF-EPN Trimble VRS/FKP in operation from the end of 2003 GPS service in operation at the Geodetic Institute of Slovenia 50 users Permanent education system

8. ? Geodetski Inštitut Slovenijewww.geod-is.si PLANS Currently 4 stations in bidding process Outside SIGNAL: 8 private stations existing (single) 15 stations planned Full network until mid 2006 within public-private partnership (SMA + Chamber of private surveying companies)

9. ? Geodetski Inštitut Slovenijewww.geod-is.si SIGNAL NETWORK

10. ? Geodetski Inštitut Slovenijewww.geod-is.si Geodetic accuracy (cm rank) over the whole national territory with 15 stations Average distance 50 to 70 km Currently: sub-decimeter accuracy with 5 networked stations Average distance 70 to 130 km THE OBJECTIVE

11. ? Geodetski Inštitut Slovenije DATA DISTRIBUTION REAL TIME 2.11 POST PROCESSING Via web server (SMA's home page)

12. ? Geodetski Inštitut Slovenije SMA's HOME PAGE: GPS SERVICE & DATA

13. ? Geodetski Inštitut Slovenijewww.geod-is.si REAL TIME Via GSM with GSM modems in the centre

14. ? Geodetski Inštitut Slovenijewww.geod-is.si REAL TIME Via mobile internet – NTRIP (Networked Transport of RTCM via Internet Protokol)

15. ? Geodetski Inštitut Slovenijewww.geod-is.si REAL TIME Via GSM provider

16. ? Geodetski Inštitut Slovenijewww.geod-is.si PERMANENT STATION LJUBLJANA

17. ? Geodetski Inštitut Slovenije SLOVENIA IN EPN * GSR 1

18. ? Geodetski Inštitut Slovenijewww.geod-is.si PERMANENT STATION BOVEC

19. ? Geodetski Inštitut Slovenije COLLOCATED TIDE GAUGE AND GPS STATION SMA + Agency for environment (meteorology) + ESEAS

20. ? Geodetski Inštitut Slovenije APOS + SIGNAL Exchange of data

21. ? Geodetski Inštitut Slovenijewww.geod-is.si GPS SERVICE - CONTACTS Home page: www.gu-signal.si Coordination: dalibor.radovan@geod-is.si Technical: gasper.mahnic@geod-is.si