Time Synchronization Mechanism for Radio Interferometer ArrayEl Houssain Ait Mansour1*, Bruno Da Silva2 and Karl-Ludwig Klein3
- *Corresponding Author:
- El Houssain Ait Mansour
Department of Electronics
Observatoire de Paris/Station
de Rasdioastronomie de Nançay, France
Tel: +33(0)2 48 51 82 41
E-mail: [email protected]
Received Date: July 07, 2017; Accepted Date: July 20, 2017; Published Date: July 26, 2017
Citation: Mansour EHA, Silva BD, Klein KL (2017) Time Synchronization Mechanism for Radio Interferometer Array. J Electr Electron Syst 6: 230. doi: 10.4172/2332-0796.1000230
Copyright: © 2017 Mansour EHA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In both wired and wireless networks, synchronization is an important service for a wide range of applications in distributed systems. This includes radio interferometry. However, literature researches show that many distributed protocols cannot satisfy sub-ns time synchronization accuracy due to asymmetric delay errors, accumulated jitters and because of the strategy used to adjust offsets. This paper proposes a global time synchronization algorithm in distributed networks. The algorithm allows us to minimize asymmetric delays with sub-ns accuracy better than 10ps and achieved global time synchronization. The theory of the algorithm used is presented and analysed to prove that it achieves global time synchronization. Simulation results are given to show the performance and limitations of the proposed algorithm.