Frequency Stability Analysis of Pulsar Aided Atomic Clocks

Po-Ting Chen and Jason L. Speyer, Walid A. Majid

Abstract:	This paper analyzes the frequency stability of pulsar-aided atomic clocks. Hadamard variance is used to analyzed the unfiltered and the filtered clock systems. The filtered clock system is constructed using a Kalman filter and accounts for the fractional power spectral density of the pulsar timing noise. Pulsar-aided compact atomic clocks do not have frequency drift induced by the random walk frequency noise as long as the pulsar timing model remains accurate. The result of the analysis shows that pulsars have the potential of enhancing the long-term stability of standalone compact atomic clocks, and the amount of improvement in steady state is dependent not only on pulsar’s frequency stability but also on that of the clock.
Published in:	Proceedings of the 49th Annual Precise Time and Time Interval Systems and Applications Meeting January 29 - 1, 2018 Hyatt Regency Reston Reston, Virginia
Pages:	30 - 44
Cite this article:	Chen, Po-Ting, Speyer, Jason L., Majid, Walid A., "Frequency Stability Analysis of Pulsar Aided Atomic Clocks," Proceedings of the 49th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, January 2018, pp. 30-44. https://doi.org/10.33012/2018.15604
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