ION Technical Content
Eurofix
| Abstract: | The proposed Eurofix system is a combination of DGPS and Loran-C. The DGPS information is additionally phase modulated on the Loran-C signal. As many Loran-C transmitters are available in the US and in Europe, almost all parts of the entire CONUS and Western Europe are within a 600 km range from a station. This Loran-C data link has a limited capacity of about lo-30 bps. To prevent large temporal decorrelation, a very efficient DGPS technique is required. Therefore, Eurofix applies fully asynchronous pseudorange corrections instead of the common RTCM SC-104 techniques. For asynchronous DGPS, a high-quality time reference is required in the reference station, which is derived from the atomic time references available in all Loran-C stations. Eurofix receivers are modified Loran-C receivers with one additional signal sampler at 50 ps after the normal range tracking position. This close-to-the-peak sampling protects the data link very effectively against continuous wave- and cross-rate interference. Eurofix receivers output DGPS data formatted according to the RTCM SC- 104 format. The final zero-baseline DGPS performance is expected to meet the FRP-92 requirements for harbor approaches. |
| Published in: |
Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993) September 22 - 24, 1993 Salt Palace Convention Center Salt Lake City, UT |
| Pages: | 721 - 729 |
| Cite this article: | Beekhuis, Lambert J., Van Willigen, Durk, "Eurofix," Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993), Salt Lake City, UT, September 1993, pp. 721-729. |
| Full Paper: |
ION Members/Non-Members: 1 Download Credit
Sign In |
Advancing positioning, navigation and timing (PNT)
© 1995-2025, The Institute of Navigation, Inc. Privacy Policy and Terms of Service