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Incorporating data from a primary frequency standard into a time scale

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1 Author(s)
Levine, Judah ; Time & Frequency Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA

We describe a new time-scale algorithm called AF1. It is designed to combine data from a primary frequency standard with time-difference measurements from an ensemble of cesium clocks and hydrogen masers. Each clock in the ensemble is characterized by a frequency which is estimated from the periodic time-differences and a frequency aging that is estimated using data from the primary frequency standard. The author compares the estimates of the algorithm with the data from our primary frequency standard, NIST-7

Published in:

Frequency Control Symposium, 1996. 50th., Proceedings of the 1996 IEEE International.

Date of Conference:

5-7 Jun 1996