Cel 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. Dziedzina nauki natural sciencescomputer and information sciencessoftwareengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsignal processing Program(-y) FP2-MAST 1 - Specific research and technological development programme (EEC) in the field of marine science and technology (MAST), 1989-1992 Temat(-y) Data not available Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator IFREMER - INSTITUT FRANÇAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER Wkład UE Brak danych Adres Rue Jean-Jacques Rousseau 155, Technopolis 40 92138 ISSY LES MOULINEAUX Francja Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (7) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francja Wkład UE Brak danych Adres Chemin Joseph Aiguier 31 13402 MARSEILLE Zobacz na mapie Koszt całkowity Brak danych Danish Maritime Institute Dania Wkład UE Brak danych Adres 99,Hjortekærsvej 2800 Lyngby Zobacz na mapie Koszt całkowity Brak danych FOUNDATION OF RESEARCH AND TECHNOLOGY - HELLAS Grecja Wkład UE Brak danych Adres Vassilika Vouton 71110 IRAKLION Zobacz na mapie Koszt całkowity Brak danych Institut de Chimie et de Physique Industrielles de Lyon Francja Wkład UE Brak danych Adres 31 place Bellecour 69298 Lyon Zobacz na mapie Koszt całkowity Brak danych RESON A/S Dania Wkład UE Brak danych Adres 13,Fabriksvangen 13 3550 SLANGERUP Zobacz na mapie Koszt całkowity Brak danych TECHNICAL UNIVERSITY OF DENMARK Dania Wkład UE Brak danych Adres Anker Engelundsvej 1, Building 101 2800 LYNGBY Zobacz na mapie Koszt całkowity Brak danych UNIVERSITY OF NEWCASTLE UPON TYNE Zjednoczone Królestwo Wkład UE Brak danych Adres NE1 7RU Newcastle upon Tyne Zobacz na mapie Koszt całkowity Brak danych