alexa Time Synchronization Mechanism for Radio Interferometer Array | OMICS International | Abstract
ISSN: 2332-0796

Journal of Electrical & Electronic Systems
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Research Article

Time Synchronization Mechanism for Radio Interferometer Array

El Houssain Ait Mansour1*, Bruno Da Silva2 and Karl-Ludwig Klein3

1Laboratoire d’´etudes spatiales, et d’instrumentation en, astrophysique – LESIA, 18330 Nanc¸ay, France

2St´ephane Bosse, Station de radioastronomie de Nanc¸ay, Route de souesmes, 18330 Nanc¸ay, France

3Observatoire de Paris, LESIA, LESIA - Bat 14, 92195 Meudon, France

*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.

Abstract

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.

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