An Evaluation of eLoran as a Backup to GPS

Johnson, Gregory; Swaszek, Peter F.; Hartnett, Richard J.; Shalaev, Ruslan; Wiggins, Mark W.

doi:10.1109/ths.2007.370027

Cited by 29 publications

(17 citation statements)

References 2 publications

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“…As a GPS ANNUAL OF NAVIGATION backup, the upgraded eLoran may provide many services comparable to those offered by systems forming GNSS. The technical potential of eLoran was described in reports delivered by research centres, such as [Johnson et al, 2007, ILA, 2007, Volpe, 2009, GLA, 2012. eLoran (the upgraded Loran) is a system of low frequency ground-based navigation, making use of transmission stations emitting precisely timed and shaped radio pulses centred at 100 kHz [GLA 2012].…”

Section: Factors Which Could Affect Timing Accuracy and Stabilitymentioning

confidence: 99%

The Identification of Possible Applications of the E-Loran System

Czaplewski

Weintrit

2018

Annual of Navigation

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Global Navigation Satellite Systems (GNSS) more and more affect many areas of human activity in the world. Every day human activity around the world depends upon satellite systems for positioning, navigation and timing. As these systems are commonly used further efforts must be made to make GNSS more immune to on occurring more and more frequently incidents of jamming and spoofing. It seems that eLoran system is currently the best the technical and scientific solution to allowing for effective protection of the Global Navigation Satellite Systems. Last year the authors presented eLoran system as a potential tool for transmission of the national time signal [Curry et al., 2017]. This time the authors present abilities of additional use of the eLoran as a back-up system for GNSS.

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Section: Factors Which Could Affect Timing Accuracy and Stabilitymentioning

confidence: 99%

The Identification of Possible Applications of the E-Loran System

Czaplewski

Weintrit

2018

Annual of Navigation

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“…During controlled proof-of-concept demonstrations, eLORAN has been demonstrated to provide approximately 20 meter, 2-dimensional root-mean-square (2D RMS) position, and approximately 100 nanosecond time accuracy 95% of the time [48], representing a 5 times to 10 times improvement over the performance of its predecessor LORAN-C. Time accuracy depends on the distance to the transmitter and the availability of reference stations to provide real-time estimates of the local path delay. These parameters are called "additional secondary factors" in the LORAN system.…”

Section: Wwvb / Wwv / Wwvh Timing Radio Broadcastsmentioning

confidence: 99%

Framework for cyber-physical systems: volume 3, timing annex

Wollman¹,

Weiss²,

Li-Baboud³

et al. 2017

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“…Network timing distribution leverages a packet-based protocol (e.g., PTP or NTP) to distribute timing information via a hierarchy of receivers. At the top of the hierarchy is a timing source that often derives a traceable national reference time from a satellite constellation (e.g., GNSS) or another time transfer source (e.g., eLORAN [115] [116], WWVB [118], etc.). Network timing distribution has a different set of security considerations than GNSS-based timing.…”

Section: Network Timingmentioning

confidence: 99%

Framework for cyber-physical systems: volume 2, working group reports

Griffor¹,

Greer²,

Wollman³

et al. 2017

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The Public Working Group as initially organized comprised 5 subgroups: Vocabulary and Reference Architecture, Cybersecurity and Privacy, Data Interoperability, Timing, and Use Cases. This document presents the reports of the latter four of these subgroups. Subgroup 1, Vocabulary and Reference Architecture-This subgroup focused on developing a consensus CPS framework and common taxonomy. The results of this subgroup , informed by the work of the other subgroups , is presented in an accompanying volume: Framework for

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An Evaluation of eLoran as a Backup to GPS

Cited by 29 publications

References 2 publications

The Identification of Possible Applications of the E-Loran System

The Identification of Possible Applications of the E-Loran System

Framework for cyber-physical systems: volume 3, timing annex

Framework for cyber-physical systems: volume 2, working group reports

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