Research of a High Precision Time Synchronization Method Based on GPS Calibration

Bu Xin You; Jing Bu; Ming Hui Yin; Yun Zou

doi:10.4028/www.scientific.net/AMM.644-650.1477

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650Research of a High Precision Time Synchronization...

Research of a High Precision Time Synchronization Method Based on GPS Calibration

Abstract:

With the higher requirement for clock accuracy in power system, the accuracy and stability of wild area punctuality in GPS cannot meet the demands of the high–precision measuring instruments in power system. Firstly, this paper establishes the mathematical model of crystal oscillator clock error using polynomial fitting method. Then, it estimates the parameters of polynomial model with generalized least squares method. Thirdly, it updates the error-model of crystal oscillator clock dynamically for modifying its predicted error. The result shows, this method can not only predict accurate time error, but also filter out random errors well in GPS.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

1477-1480

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.1477

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Online since:

September 2014

Authors:

Bu Xin You*, Jing Bu, Ming Hui Yin, Yun Zou

Keywords:

Clock, Crystal Oscillator, Generalized Least Squares, GPS, Interpolation Compensation

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* - Corresponding Author

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