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Realization of Timescale Steering Algorithms Using External Measurement Results

S. D. Podogova, N. S. Arkhipov, V. A. Lysenko, K. G. Mishagin

Transactions of IAA RAS, issue 42, 125–132 (2017)

Keywords: time and frequency standard, timescale steering, algorithm of frequency control, frequency instability, Allan deviation.

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Abstract

The developed software allows for steering the phase and the frequency of the signal produced by the ensemble of atomic clocks. The software includes the following options: steering to the UTS timescale using the data published in the Circular T and the Rapid UTC by BIPM; steering to the UTC timescale transferred by the global navigational satellite systems (GLONASS, GPS, Galileo); steering to the timescales realized in remote ensembles using the GNSS CV/AV or TWSTFT comparison methods; and a simple steering mode allowing to compensate pre-calculated offsets of phase and frequency. Two algorithms of optimal frequency control are used: the minimal control energy algorithm and the Linear Quadratic Gaussian control (LQG). The steering interval (the interval between frequency corrections) may be configured in the range form 15 minutes to 30 days. The phase time constant (transient time length) may be configured in the range from 1 hour to 120 days. The simulation results and real measurement results are presented. The frequency instability of the controlled signal is analysed.

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S. D. Podogova, N. S. Arkhipov, V. A. Lysenko, K. G. Mishagin. Realization of Timescale Steering Algorithms  Using External Measurement Results // Transactions of IAA RAS. — 2017. — Issue 42. — P. 125–132.

@article{podogova2017,
  abstract = {The developed software allows for steering the phase and the frequency of the signal produced by the ensemble of atomic clocks. The software includes the following options: steering to the UTS timescale using the data published in the Circular T and the Rapid UTC by BIPM; steering to the UTC timescale transferred by the global navigational satellite systems (GLONASS, GPS, Galileo); steering to the timescales realized in remote ensembles using the GNSS CV/AV or TWSTFT comparison methods; and a simple steering mode allowing to compensate pre-calculated offsets of phase and frequency. 
Two algorithms of optimal frequency control are used: the minimal control energy algorithm and the Linear Quadratic Gaussian control (LQG). The steering interval (the interval between frequency corrections) may be configured in the range form 15 minutes to 30 days. The phase time constant (transient time length) may be configured in the range from 1 hour to 120 days.
The simulation results and real measurement results are presented. The frequency instability of the controlled signal is analysed.},
  author = {S.~D. Podogova and N.~S. Arkhipov and V.~A. Lysenko and K.~G. Mishagin},
  issue = {42},
  journal = {Transactions of IAA RAS},
  keyword = {time and frequency standard, timescale steering, algorithm of frequency control, frequency instability, Allan deviation},
  pages = {125--132},
  title = {Realization of Timescale Steering Algorithms  Using External Measurement Results},
  url = {http://iaaras.ru/en/library/paper/1754/},
  year = {2017}
}

TY  - JOUR
TI  - Realization of Timescale Steering Algorithms  Using External Measurement Results
AU  - Podogova, S. D.
AU  - Arkhipov, N. S.
AU  - Lysenko, V. A.
AU  - Mishagin, K. G.
PY  - 2017
T2  - Transactions of IAA RAS
IS  - 42
SP  - 125
AB  - The developed software allows for steering the phase and the
frequency of the signal produced by the ensemble of atomic clocks.
The software includes the following options: steering to the UTS
timescale using the data published in the Circular T and the Rapid
UTC by BIPM; steering to the UTC timescale transferred by the global
navigational satellite systems (GLONASS, GPS, Galileo); steering to
the timescales realized in remote ensembles using the GNSS CV/AV or
TWSTFT comparison methods; and a simple steering mode allowing to
compensate pre-calculated offsets of phase and frequency.   Two
algorithms of optimal frequency control are used: the minimal control
energy algorithm and the Linear Quadratic Gaussian control (LQG). The
steering interval (the interval between frequency corrections) may be
configured in the range form 15 minutes to 30 days. The phase time
constant (transient time length) may be configured in the range from
1 hour to 120 days.  The simulation results and real measurement
results are presented. The frequency instability of the controlled
signal is analysed.
UR  - http://iaaras.ru/en/library/paper/1754/
ER  -