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Accuracy study for over-the-air frequency synchronization of continuous wave signals

Published online by Cambridge University Press:  13 November 2024

Thomas Dallmann*
Affiliation:
Radio Technologies for Automated and Connected Vehicles Research Group at Thüringer Innovationszentrum Mobilität, Technische Universität Ilmenau, Ilmenau, Germany
Reiner Thomä
Affiliation:
Electronic Measurements and Signal Processing Group at Thüringer Innovationszentrum Mobilität, Technische Universität Ilmenau, Ilmenau, Germany
*
Corresponding author: Thomas Dallmann; Email: [email protected]

Abstract

Future communication and radar sensing systems will require synchronization methods which are more versatile in terms of the systems involved in the synchronization process. We present an over-the-air frequency synchronization algorithm based on the standard and the generalized Kuramoto model which uses continuous wave (CW) signals. In contrast to other approaches, all nodes of the network participate equally, and synchronization can even be achieved in presence of a non-cooperative node. By changing the parameters of the radar or by modifying the synchronization algorithm, synchronization accuracy can be adjusted as well. All claims are supported by measurements conducted with CW radars. It will be demonstrated that our algorithm enables synchronization accuracies down to 1.92 ppb and thus could provide sufficient accuracy for velocity measurements on pedestrians.

Type
Research Paper
Copyright
© The Author(s), 2024. Published by Cambridge University Press in association with The European Microwave Association.

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