Real-time Frequency Estimation of Local Oscillators Using GPS Timing Receivers

In this paper, we show that recently designed the finite impulse response (FIR) filtering algorithm provides realtime estimation of the fractional frequency offset of a local clock with high accuracy via GPS-based measurements of the time interval error (TIE). Such a splendid property of the algorit...

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Bibliographic Details
Main Authors: Shmaliy, Y.S., Arceo-Miquel, L., Munoz-Diaz, J., Ibarra-Manzano, O.
Format: Conference Proceeding
Language:English
Subjects:
Algorithm design and analysis
Clocks
Filtering algorithms
Finite impulse response filter
Frequency estimation
Frequency measurement
Global Positioning System
Local oscillators
Time measurement
Timing
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Summary:In this paper, we show that recently designed the finite impulse response (FIR) filtering algorithm provides realtime estimation of the fractional frequency offset of a local clock with high accuracy via GPS-based measurements of the time interval error (TIE). Such a splendid property of the algorithm is due to small produced noise in the estimates of the TIE. It is also shown that the algorithm applied to sawtooth measurements serves as a nice estimator of the Allan deviation. The latter cannot be estimated via sawtooth-less measurements.
ISSN:2327-1914
DOI:10.1109/FREQ.2007.4319082