Advanced Self-Correcting Time Synchronization in Wireless Sensor Networks

作者:Liu Bin*; Ren Fengyuan; Shen Junyang; Chen Hongyang
来源:IEEE Communications Letters, 2010, 14(4): 309-311.
DOI:10.1109/LCOMM.2010.04.092364

摘要

To improve the two deficiencies of the Self-Correcting Time Synchronization (SCTS) mechanism, we propose a Kalman filter based Advanced SCTS (ASCTS) mechanism in this letter. We prove and explain the close relationship between the basic phase locked loop (PLL) employed by SCTS and the Kalman filter employed by ASCTS. An experimental platform with eight GAINS-3 nodes is used to evaluate the performance.