Objective Underwater acoustic communication through a channel which is shallow by comparison to range (with typical range over depth ratio of the order of 100) raises several difficult issues which are further amplified when it is required to design a communication system for an AUV (Autonomous Underwater Vehicle). Massive multipaths, limited bandwidth and array size, large Doppler effect and non stationary behaviour are the main problems to be solved to achieve a viable system. The use of parametric transduction is a potential candidate for medium range communication because of the small achievable array size, large proportional bandwidth, and high directionality of the wave generation process. This project aims to design, build, and demonstrate at sea the feasibility of the concept for communication between fixed and moving platforms. The project should establish the design rules for the parametric array technology and explore the limitations of the project. It will be the first project to demonstrate fully the possibilities of the technology in data transmission. The project will further explore other aspects of communication system options, such as equalisation, channel coding, and time recovery issues. The project should also provide a global simulator for the communication link which includes the channel, the array, and the platform motion. Fields of science natural sciencesphysical sciencesacoustics Programme(s) FP3-MAST 2 - Specific research and technological development programme (EEC) in the field of marine science and technology, 1990-1994 Topic(s) 0302 - Underwater acoustics Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Thomson Marconi Sonar SAS Address 525,route des dolines 06903 Sophia antipolis France See on map EU contribution No data Participants (3) Sort alphabetically Sort by EU Contribution Expand all Collapse all Centre National de la Recherche Scientifique (CNRS) France EU contribution € 0,00 Address Institut national polytechnique de grenoble 38402 Saint-martin-d'hères See on map Other funding No data Direction des Constructions Navales de Toulon France EU contribution € 0,00 Address 83800 Toulon See on map Other funding No data UNIVERSITY OF BIRMINGHAM United Kingdom EU contribution € 0,00 Address Edgbaston B15 2TT Birmingham See on map Other funding No data
