Remote Synchronization of Onboard Crystal Oscillator for QZSS Using L1/L2/L5 Signals for Error Adjustment

A new error adjustment method for remote synchronization of the onboard crystal oscillator for the quasi-zenith satellite system (QZSS) using three different frequency positioning signals (L1/L2/L5) is proposed. The error adjustment method that uses L1/L2 positioning signals was demonstrated in the...

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Bibliographic Details
Main Authors: Iwata, T., Imae, M., Suzuyama, T., Iwasaki, A., Kokubu, K., Hashibe, Y., Fukushima, S., Tappero, F., Dempster, A.
Format: Conference Proceeding
Language:English
Subjects:
Atomic clocks
Delay effects
Delay estimation
Frequency estimation
Frequency synchronization
Global Positioning System
Oscillators
Satellite broadcasting
Space technology
Stability
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Summary:A new error adjustment method for remote synchronization of the onboard crystal oscillator for the quasi-zenith satellite system (QZSS) using three different frequency positioning signals (L1/L2/L5) is proposed. The error adjustment method that uses L1/L2 positioning signals was demonstrated in the past. In both methods, the frequency-dependent part and the frequency-independent part were considered separately, and the total time information delay was estimated. By adopting L1/L2/L5, synchronization was improved by approximately 15% compared with that using L1/L2 and approximately 10% compared with that using L1/L5.
ISSN:2327-1914
DOI:10.1109/FREQ.2007.4319289