Title :
IEEE1588 Clock servo algorithm
Author_Institution :
Sch. of Autom. Sci. & Electr. Eng., BeiHang Univ., Beijing, China
Abstract :
This paper describes a new clock servo algorithm to adjust slave clock of IEEE1588. This algorithm can correct clock time error and clock frequency error in one sync cycle. For this purpose, there are two input variables being used in clock servo, clock time error and clock frequency error. The frequency compensated clock which supports this algorithm is introduced in this paper. And the method that the separates the frequency error form time error is discussed. The experiments show that the algorithm is faster and more accurate. It can be implemented by hardware assist or software-only.
Keywords :
IEEE standards; clocks; error correction; synchronisation; IEEE1588; clock frequency error; clock servo algorithm; clock time error; slave clock; synchronization; Clocks; Error correction; Frequency synchronization; Hardware; Local area networks; Master-slave; Oscillators; Servomechanisms; Stability; Temperature distribution; IEEE1588; PTP; clock servo; frequency compensated clock; synchronized clock;
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
DOI :
10.1109/ICEMI.2009.5274861
