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International Journal of Antennas and Propagation
Volume 2012 (2012), Article ID 507094, 6 pages
http://dx.doi.org/10.1155/2012/507094
Application Article

Impact of Ship Motions on Maritime Radio Links

1Communications Department, DCNS, France
2Electronic Department and Labsticc, Telecom Bretagne, France
3Microwaves Department and Labsticc, Telecom Bretagne, France

Received 27 July 2012; Revised 22 October 2012; Accepted 7 November 2012

Academic Editor: Thomas Kürner

Copyright © 2012 William Hubert et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The improvement of maritime radio links often requires an increase of emitted power or receiver sensitivity. Another way is to replace the poor antenna gains of traditional surface ship whips by novel antenna structures with directive properties. However, ship motions, especially when launches are involved, may affect the radio link quality. Therefore, a tool for modelling the impact of ship motions on such antenna structures was developed. It helps the specification of antenna radiating parameters and improves the radio link performance evaluation. This tool includes a deterministic two-ray model for radio-wave propagation over the sea surface. The geometrical 3D engine for ship motions has the advantage to be compatible with any propagation model and antenna structure.