Search

First International Conference on Advances in Satellite and Space Communications (SPACOMM 2009), 20-25 July 2009, Colmar, France.-- 7 pages, 11 figures, 6 tables This article describes the architecture of two broadband satellite communication systems using a Very Small Aperture Terminal which have been installed on two Spanish oceanographic research vessels. The potential use, equipment and their characteristics are studied and compared. Analysing four parameters (jitter, round time trip, package loss and throughput), system configuration has been modified from the launch until the final optimization in order to improve TCP/IP based communications. The hardware selection is fundamental to the successful implantation of the systems, which has to guarantee the quality of satellite services. Satellite channels can affect TCP/IP protocols, but these difficulties were overcome with correct system configuration. Despite the service being operated correctly, several tests had to be done periodically to improve it and check the satellite service conditions. After the optimization of equipment configuration and network parameters on VSAT links of both vessels, effective and stable links have been obtained for web navigation and VPN communication Thanks to staff from Universitat Politècnica de Catalunya under contract CTM2008-04517 for their suggestions and support

First International Conference on Advances in Satellite and Space Communications (SPACOMM 2009), 20-25 July 2009, Colmar, France.-- 10 pages, 12 figures, 1 table This work describes the development of a monitoring system for vessels from the Marine Technology Unit(UTM) of the Spanish Research Council (CSIC) and draws on the graph capabilities and the potential access to remote data that is offered by Google Earth and the new satellite data transmission capabilities installed on-board. Performance analysis is carried out at several critical points of the system, in terms of data processing and networking, showing that, with minor variations in implementation, this system can be adopted to monitor a greater number of mobile units while at the same time remain sufficiently flexible to be used as a didactic teaching tool for schools and universities. This development is a product of a more ambitious acquisition project that deals with the modeling and acquisition of oceanographic data led by a working group at the UTM and the Universitat Politècnica de Catalunya This work is supported by the Spanish “Ministerio de Ciencia e Innovación” under contract CTM2008-04517

Martech 2007 International Workshop on Marine Technology, 15-16 november 2007, Vilanova i la Geltrú, Spain.-- 3 pages, 5 figures

Marine Technology Workshop (Martech05), 17-18 November 2005, Vilanova i la Geltrú, Barcelona.-- 3 pages, 1 figure

Marine Technology Workshop (Martech05), 17-18 November 2005, Vilanova i la Geltrú, Barcelona.-- 2 pages, 2 figures