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Synchronised Low-Frequency Augmentation of GPS (SYLFA)

Published online by Cambridge University Press:  01 September 1998

William F. Roland
William F. Roland
Affiliation:
Megapulse, Inc., Bedford, MA U.S.A.
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Abstract

As new technologies contribute to the expanded functionality of Loran-C, and as concerns for limitations in GPS and its augmentations are raised, specific aspects of Loran-C have been developed and applied to ameliorate those limitations. Specifically, GPS availability is a concern, particularly in over-land applications. This paper discusses recent developments using very high-precision synchronisation of Loran-C transmissions, new data compression and Loran-C signal modulation techniques to augment GPS accuracy, availability and integrity over a very wide area at very low cost.

Keywords

NavaidsLoran-CAugmentationGPS
Type
Research Article
Information
The Journal of Navigation , Volume 51 , Issue 3 , September 1998 , pp. 294 - 303
Copyright
© 1998 The Royal Institute of Navigation

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