Abstract: | "The U. S. Coast Guard (USCG) LORAN Support Unit participating in an effort with Timing Solutions Corporation (TSC), USNO and several other government agencies to define and analyze the performance of a new Enhanced LORAN system as a backup for GPS provided timing recovery services. The initial research has been conducted, but this effort specifically addresses LORANÕs capability to meet requirements environmentally and geographically challenging areas. This paper examines the critical operational requirements centered on providing precise timing (sub 100 nanoseconds). The paper discusses how the uses common-view techniques via Differential LORAN allow for precise time recovery. The paper also looks briefly on how the Coast GuardÕs LORAN infrastructure improvements and changes in operational procedures are progressing towards a fully recapitalized system that ready to meet future requirements that are much more stringent than LORANÕs current performance. The paper validates LORANÕs potential to meet the timing requirements by illustrating the results of several on-air tests. Past tests included testing in the mid-west, where the proof-of-concept was shown. This paper examines the new northeast U.S. test bed to determine the viability of common-view LORAN to meet precision time recovery levels in challenging propagation scenarios that include land/seawater paths on the East Coast. " |
Published in: |
Proceedings of the 61st Annual Meeting of The Institute of Navigation (2005) June 27 - 29, 2005 Royal Sonesta Hotel Cambridge, MA |
Pages: | 379 - 385 |
Cite this article: | Shmihluk, Kevin, Carroll, Kevin, Celano, Tom, Biggs, Casey, Powers, Ed, "Enhanced LORAN Implementation and Evaluation for Timing and Frequency," Proceedings of the 61st Annual Meeting of The Institute of Navigation (2005), Cambridge, MA, June 2005, pp. 379-385. |
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