TY - GEN
T1 - Joint Time Synchronization and Ranging Method Aided by Doppler Frequency Shift
AU - Yang, Zhenhua
AU - Shen, Yuyao
AU - Shi, Xuesen
AU - Wang, Yongqing
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Radio-based two-way message exchange is an important time synchronization method. However, the accuracy of synchronization and ranging decreases when the clock is not ideal. In this study, we considered a time-varying accumulated clock offset, and proposed a Doppler-shift assisted joint time synchronization and ranging method based on Extended Kalman Filter (EKF). The accumulated clock offset and local Doppler shift were modeled; time stamps and Doppler shift information were exchanged during synchronization; the joint estimation of clock and distance parameters were accomplished through the EKF. Simulation experiments showed that the proposed method can further improve the synchronization and ranging accuracy as well as reduce the convergence time compared with the recently proposed extended time-varying Kalman filter method.
AB - Radio-based two-way message exchange is an important time synchronization method. However, the accuracy of synchronization and ranging decreases when the clock is not ideal. In this study, we considered a time-varying accumulated clock offset, and proposed a Doppler-shift assisted joint time synchronization and ranging method based on Extended Kalman Filter (EKF). The accumulated clock offset and local Doppler shift were modeled; time stamps and Doppler shift information were exchanged during synchronization; the joint estimation of clock and distance parameters were accomplished through the EKF. Simulation experiments showed that the proposed method can further improve the synchronization and ranging accuracy as well as reduce the convergence time compared with the recently proposed extended time-varying Kalman filter method.
KW - Doppler frequency shift
KW - Extended Kalman Filter
KW - joint parameter estimation
KW - time synchronization
KW - two-way message exchange
UR - https://www.scopus.com/pages/publications/85136444548
U2 - 10.1109/ITAIC54216.2022.9836714
DO - 10.1109/ITAIC54216.2022.9836714
M3 - Conference contribution
AN - SCOPUS:85136444548
T3 - IEEE Joint International Information Technology and Artificial Intelligence Conference (ITAIC)
SP - 1616
EP - 1621
BT - IEEE 10th Joint International Information Technology and Artificial Intelligence Conference, ITAIC 2022
A2 - Xu, Bing
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE Joint International Information Technology and Artificial Intelligence Conference, ITAIC 2022
Y2 - 17 June 2022 through 19 June 2022
ER -