Recent Reelektronika Publications

1. Willigen, Durk van, "It cannot go on forever - we have to find a solution!", Coordinates, Volume VIII, Issue 1, January 2012, http://mycoordinates.org/pdf/jan12.pdf

2. Willigen, Durk van, "Spectrum - The New Gold Rush?", ENC 2011, Nov 29 - Dec 1, 2011, London.

3. Pelgrum, Wouter J., "The Availability Game", Invited presentation to be given at the ENC GNSS 2004 at Rotterdam, May 2004.

4. Pelgrum, Wouter J., Arthur W.S. Helwig, Gerard W.A. Offermans & Erik Johannessen, "Field Measurements of dLoran for Harbor Entrance and Approach", ION, January 2004.

5. Willigen, Durk van, "The Challenge of Finding Your Position in a World Hostile to Radio Navigation", ILA-33 Convention and Technical Symposium, Boulder , CO, USA, 3-7 November 2003.

6. Willigen, Durk van, "The Fine Taste of a Smart Space-Terrestrial Blend of Radionavigation Systems", IAIN, Berlin, Germany, 21-24 October 2003.

7. Offermans, Gerard W.A. & Arthur W.S. Helwig, "Integrated Navigation System Eurofix - Vision, Concept, Design, Implementation & Test", PhD Thesis, Delft University of Technology, ISBN 90-901-7418-4, 13 October 2003.

8. Helwig, Arthur W.S., Gerard W.A. Offermans & Durk van Willigen, "EGNOS TRAN over Loran-C - Local Area and Wide Area Implementation", ION GPS/GNSS, Portland, USA, September 2003.

9. Willigen, Durk van, Arthur Helwig, Gerard Offermans, Jürgen Seybold, Günther Abwerzger & Antonio Salonico, "EGNOS SBAS Data Reduction to Match ITU-R Eurofix Specifications", ION GPS/GNSS 2003, Portland, USA, September 2003.

10. Willigen, Durk van, "GNSS Vulnerability – Can we Solve the Problem?", Vol. 1, Number 2, August 2003.

11. Helwig, Arthur W.S., Gerard W.A. Offermans, Wouter J. Pelgrum, René Kellenbach & Durk van Willigen, "The Best of Two Worlds - GPS+Loran-C Snugly Together in a PocketPC-sized Device", ENC GNSS 2003, Graz, Austria, 22-25 April 2003.

12. Willigen, Durk van, Wouter Pelgrum, Arthur Helwig & Gerard Offermans, "Improving GPS UTC Service by Loran-C/Eurofix", ENC GNSS 2003, Graz, Austria, 22-25 April 2003.

13. Pelgrum, Wouter J. & Durk van Willigen, "Loran-C Challenges GNSS: From a Quarter Nautical Mile Down to Meter-Level Accuracy", ENC GNSS 2003, Graz, Austria, 22-25 April 2003

14. Willigen, Durk van, "Challenging GNSS Vulnerability? Or Better Not?", Hydro International, April 2003.

15. Willigen, Durk van, "Radio Navigation: Perspectives and Challenges", NAV02 - GNSS Vulnerability, London, 5-7 November 2002.

16. Offermans, Gerard W.A., Arthur W.S. Helwig, René Kellenbach, Wouter J. Pelgrum & Durk van Willigen, "New Loran-C Receiver Performance Levels for Extended Range Eurofix and Kinematic Applications", Proceedings of the ILA 31, Washington DC, USA, 27-30 October 2002.

17. Willigen, Durk van, Arthur W.S. Helwig, Wouter J. Pelgrum & Gerard W.A. Offermans,  "Fast TOC-less UTC Service through Loran-C/Eurofix", Proceedings of the ILA 31, Washington DC, USA, October 27-30 2002.

18. Willigen, D. van, G.W.A. Offermans, A.W.S. Helwig, R. Kellenbach & W.J. Pelgrum, "Extended Range Eurofix: A Robust 2,000 km Range Data Link for EGNOS/WAAS Integrity Messages over the Polar Region", ION GPS, Portland, USA, 24-29 September 2002.

19. Willigen, Durk van, Gerard W.A. Offermans & Arthur W.S. Helwig, "The ‘Eurofix versus Loran Data Channel’ Debate", Proceedings of the 3rd International Symposium on Integration of Loran-C / Eurofix and EGNOS / Galileo, Munich, Germany, 11-12 June 2002.

20. Pelgrum, Wouter J., René Kellenbach & Durk van Willigen, "Miniaturizing Hybrid GPS/Loran-C/Eurofix Receivers", Proceedings of the 3rd International Symposium on Integration of Loran-C / Eurofix and EGNOS / Galileo, Munich, Germany, 11-12 June 2002.

21. Helwig, Arthur W.S., Gerard W.A. Offermans, René Kellenbach, Wouter J. Pelgrum & Prof.dr. Durk van Willigen, "Pushing the Performance Limits of Loran-C/Eurofix Receivers", Proceedings of the 3rd International Symposium on Integration of Loran-C / Eurofix and EGNOS / Galileo, Munich, Germany, 11-12 June 2002.

22. Willigen, Durk van, "GPS and Interference: Ghosts, Fear or Reality", HSB/NIN/NVG Workshop "GPS - Soms zit het tegen", Delft, Netherlands, 19 April 2002.

23. Offermans, Gerard W.A., "Eurofix Installation and Check Out on FERNS Korean TX",  Proceedings of the ILA-31 Convention and Technical Symposium, St. Germain-en-Laye, France, 7-10 October 2001.

24. Helwig, Arthur W.S., Gerard W.A. Offermans, René Kellenbach, Durk van Willigen & Wouter J. Pelgrum, "Measuring and Comparing GPS and Loran-C/Eurofix Performance", Proceedings of the ILA-31 Convention and Technical Symposium, St. Germain-en-Laye, France, 7-10 October 2001.

25. Willigen, Durk van, Gerard W.A. Offermans, Arthur W.S. Helwig & Wouter J. Pelgrum, "Does Integration of GPS and Loran-C Meet Users Needs? Some Different Approaches", Proceedings of the ILA-31 Convention and Technical Symposium, St. Germain-en-Laye, France, 7-10 October 2001.

26. Pelgrum, Wouter J. & Durk van Willigen, "Loran-C Signal Propagation, Reception  and Processing aspects in Urban Areas", Proceedings of the ILA-31 Convention and Technical Symposium, St. Germain-en-Laye, France, 7-10 October 2001.

27. Willigen, Durk van, Gerard W.A. Offermans, Arthur W.S. Helwig & Wouter J. Pelgrum, "Eurofix: Status, Performance and Possible Interoperability with GNSS, WAAS and EGNOS", Proceedings of ION GPS, Salt lake City, Utah, USA, 11-14 September 2001.

28. Pelgrum, W.J., "Structured Design of H-field Antennae for Low Frequency GNSS Augmentation Systems", Proceedings of ION GPS, Salt Lake City, Utah, USA, 11-14 September 2001.

29. Willigen, Durk van, "Europe's Position in Positioning", The Navigation View, Vol. II/2001.
    

30. Willigen, D. van, "Eurofix", Journal of the Royal Institute of Navigation, Vol. 42, No. 3, September 1989.