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GRI Ranking Based on Cross-Rate Interference in Loran-C

Published online by Cambridge University Press:  21 October 2009

Andre K. Nieuwland
Andre K. Nieuwland
Affiliation:
(Delft University of Technology)
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Abstract

This paper starts with a brief overview of cross-rate interference (CRI) and methods developed in the past for estimating the CRI between two Group Repetition Intervals (GRIS). It presents an algorithm for fast calculation of the loss of pulses due to blanking in dual-rate stations. These stations broadcast on the GRIS of two chains but, if pulses of both chains overlap, one GRI is not transmitted at that instant. Furthermore, it will discuss the impact of this blanking on the use of Loran-C signals for transmitting data. A strategy is given for selecting GRIS, based on the presented theory. The paper is based on papers presented at the 1993 WGA technical symposium and the 1993 INA conference.

Keywords

1. Hyperbolic systems.2. Radio aids.
Type
Research Article
Information
The Journal of Navigation , Volume 48 , Issue 1 , January 1995 , pp. 136 - 152
Copyright
Copyright © The Royal Institute of Navigation 1995

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References

REFERENCES

1Nieuwland, A. (1993). System aspects of cross-rate interference. In Proceedings of the Twenty- Second Annual Technical Symposium, Wild Goose Association, pp. 161–168.Google Scholar
2Nieuwland, A. (1993). Cross-rate interference minimization in dual-rate Loran-C Stations. In Proceedings of the Eighteenth Annual Meeting, pp. 25(1)–25(8), International Navigation Association.Google Scholar
3U.S. Coast Guard. (1993). Atlantic Area Loran-C branch, User Information Package.Google Scholar
4Zeltser, M. J. and El-Arini, M. B. (1985). The impact of cross-rate interference on Loran- C receivers. IEEE Transactions on Aerospace and Electronic Systems, AES-2I, 26–46.CrossRefGoogle Scholar
5Stenseth, A. (1991). The North West European Loran-C System, a new update. In Proceedings of the Twentieth Annual Technical Symposium, 8–13. The Wild Goose Association.Google Scholar
6Qing-Miao, Lui, Ling-Hu, Kong. (1993). Development of the China Long Range Navigation System (China Loran-C). In Proceedings of the Twenty-Second Annual Technical Symposium. The Wild Goose Association, pp. 21–24.Google Scholar
7 Specification of the transmitted Loran-C signal. (1981). Tech. rep., U.S. Coast Guard, Washington.Google Scholar
8Beckmann, M. and Linklaen Arriens, H. J. (1987). Selecting group repetition intervals for European chains. In Proceedings of the Sixteenth Annual Technical Symposium, 149–157, The Wild Goose Association.Google Scholar
9Etten, J. v. (1979). Reduction of interference to Loran-C. In Proceedings of the Eighth Annual Technical Symposium. The Wild Goose Association.Google Scholar
10Peterson, B., Gross, K. and Bowen, E. (1993). Loran receiver structure for cross rate interference cancellation. In Proceedings of the Twenty-Second Annual Technical Symposium. The Wild Goose Association, pp. 125–132.Google Scholar
11Roland, W. (1974). Loran-C phase code and rate manipulation for reduced cross-chain interference. In Proceedings of the Third Annual Technical Symposium. The Wild Goose Association.Google Scholar
12Feldmann, D.Pakos, P. and Pots, C. (1975). On the analysis and minimization of mutual interference of Loran-C chains. In Proceedings of the Fith Annual Technical Symposium. The Wild Goose Association.Google Scholar
13Enge, P. K. and Bregstone, E. (1986). Loran-C communications. In Position Location and Navigation Symposium.Google Scholar
14Hoogenraad, B. (1988). Loran-C pulse position modulation and demodulation. Master's thesis, Delft University of Technology, The Netherlands, and Norwegian Institute of Technology, Trondheim, Norway.Google Scholar
15Willigen, D. v. (1989). Eurofix. This Journal 43, 375.Google Scholar
16Beckmann, M. (1990). Synchronous interference to Loran-C and its influence on cycle identification. In Proceedings of the Nineteenth Annual Technical Symposium, pp. 105–113. The Wild Goose Association.Google Scholar
17Lincklaen Arriëns, H. J. and Beckmann, M. (1992). Selecting group repetition intervals for North-Western European Loran-C chains. Tech. rep., Delft University of Technology, Lab. for Electronic Engineering, P.O. Box 3100, 2600 GA Delft, The Netherlands. Report within the framework of the cooperation agreement ET 91–023, between the Delft University of Technology and the Norwegian Defence communications and data services administration.Google Scholar