Rapid, Accurate, and Precise Time and Frequency Transfer in a Hand-held Radio

Bradley D. Farnsworth, E.J. Kreinar, David W.A. Taylor

Abstract:	Relative measurements of time and frequency enable advanced capabilities in positioning, navigation, and timing (PNT) and communications systems. Round-trip time-of-flight radio frequency (RF) transactions using band-limited communications enable relative measurements of time, frequency, distance, and velocity, as well as active time and frequency synchronization between untethered platforms. A timing, communications, and ranging (TCR) element provides these measurements on a resource-constrained computational hardware platform. The system demonstrates 7 parts per billion (ppb) frequency synchronization and 100 picosecond time synchronization using 3 millisecond duration observations.
Published in:	Proceedings of the 46th Annual Precise Time and Time Interval Systems and Applications Meeting December 1 - 4, 2014 Seaport Boston Hotel Boston, Massachusetts
Pages:	111 - 116
Cite this article:	Farnsworth, Bradley D., Kreinar, E.J., Taylor, David W.A., "Rapid, Accurate, and Precise Time and Frequency Transfer in a Hand-held Radio," Proceedings of the 46th Annual Precise Time and Time Interval Systems and Applications Meeting, Boston, Massachusetts, December 2014, pp. 111-116.
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