Obiettivo Development of a new generation of sonar systems for seafloor imaging.A prototype high resolution sea floor mapping system has been development, making use of sophisticated signal processing, synthetic imaging algorithms and wide band transducer design. Software simulations of the performance of wide band synthetic sonar have been constructed, to assess image processing schemes. Numerical models of sonar echoes backscattered from the sea floor have been completed to determine how to interpret the data. The feasibility of towing a device from a vessel was investigated. Tests were carried out in water tanks, and parameters of experimental prototypes calculated from theory and experiment. Sea trials have been conducted to prove the feasibility of such a prototype (May 1993).This will have to ensure both a great ease of use and high performances. To reach these aims, these systems will include innovative technology of wide-band signal processing and more particularly of synthetic aperture: while classical imaging systems (sonar) consider the ship movement as an external parameter and provide for each position a "snapshot", the synthetic aperture sonars integrate these movements in the processing. As opposed to classical sonars, for which increasing the resolution proceeds from an increase of the array length (problem of manoeuvrability), a synthetic aperture sonar allows it to reach the same resolution using a small-sized towed array. The complexity of the system is thus no longer the immersed mechanical parts, but the electronic instrumentation, the signal processing and the trajectory systems. All these will be developed in this project to provide an accurate mapping of seafloors and a seabottom classification. Campo scientifico natural sciencescomputer and information sciencessoftwareengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsignal processing Programma(i) FP2-MAST 1 - Specific research and technological development programme (EEC) in the field of marine science and technology (MAST), 1989-1992 Argomento(i) Data not available Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore IFREMER - INSTITUT FRANÇAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER Contributo UE Nessun dato Indirizzo Rue Jean-Jacques Rousseau 155, Technopolis 40 92138 ISSY LES MOULINEAUX Francia Mostra sulla mappa Costo totale Nessun dato Partecipanti (7) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francia Contributo UE Nessun dato Indirizzo Chemin Joseph Aiguier 31 13402 MARSEILLE Mostra sulla mappa Costo totale Nessun dato Danish Maritime Institute Danimarca Contributo UE Nessun dato Indirizzo 99,Hjortekærsvej 2800 Lyngby Mostra sulla mappa Costo totale Nessun dato FOUNDATION OF RESEARCH AND TECHNOLOGY - HELLAS Grecia Contributo UE Nessun dato Indirizzo Vassilika Vouton 71110 IRAKLION Mostra sulla mappa Costo totale Nessun dato Institut de Chimie et de Physique Industrielles de Lyon Francia Contributo UE Nessun dato Indirizzo 31 place Bellecour 69298 Lyon Mostra sulla mappa Costo totale Nessun dato RESON A/S Danimarca Contributo UE Nessun dato Indirizzo 13,Fabriksvangen 13 3550 SLANGERUP Mostra sulla mappa Costo totale Nessun dato TECHNICAL UNIVERSITY OF DENMARK Danimarca Contributo UE Nessun dato Indirizzo Anker Engelundsvej 1, Building 101 2800 LYNGBY Mostra sulla mappa Costo totale Nessun dato UNIVERSITY OF NEWCASTLE UPON TYNE Regno Unito Contributo UE Nessun dato Indirizzo NE1 7RU Newcastle upon Tyne Mostra sulla mappa Costo totale Nessun dato