National_Catalogues: Results From Proof-Of-Concept Time-Based Communications Testing
Title:
Results From Proof-Of-Concept Time-Based Communications Testing
Identifier:
ADA500803
STOAbstractExternal:
This paper presents the results of the time-based communications testing performed at Lincoln Labs (MIT/LL) using an Optical Two-Way Time Transfer Communications System. A short explanation of system design and two-way time transfer implementation in a communications channel will be followed by a presentation of data sets from the Lincoln Laboratory testing. Time transfer measurement data will be presented from tests conducted from within the laboratory, as well as tests conducted over long-distance, outdoor links. The laboratory measurements to be presented include two-way time transfer results over fiber in a controlled (constant temperature) environment with typical communications hardware inserted in the link between clocks. The hardware used for laboratory measurements includes electro-optic repeaters and erbium-doped fiber-optic amplifiers. The outdoor fiber links (intended to represent real-world links) include a 75-km fiber run with OC-3 repeaters inserted at the midpoint, and 100-km with wave-division multiplexing equipment in the link. Synchronization error measurement data are presented for each test configuration. Two-way delay data will be presented for the real world links to show the changes in fiber length induced by temperature variations in the outdoor environment.
STOAuthorExternal:
TIMING SOLUTIONS CORP BOULDER CO,Celano, T. P., Stein, Sam R., Gifford, G. A., Swanson, E. A., Hemenway, Jr., B. R., Carney, J. C.
STOClassificationExternal:
N
STOKeywordsExternal:
OPTICAL TWO WAY TIME TRANSFER, TIME TRANSFER, PRECISE TIME
STOPublisher:
USA
Language:
English
STOReportSource:
http://www.dtic.mil/docs/citations/ADA500803
Published:
12/1/1997
Created at 11/9/2016 3:26 PM by System Account
Last modified at 11/9/2016 3:26 PM by System Account
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