Ixblue

Ixsea

Frédéric Jean

Frédéric Mosca

Didier Charlot

Yann Cottreau

Fabien Napolitano

A sonar system includes at least one transmitter and one flexible antenna including a plurality of sections articulated one after the other, each section being provided with at least one acoustic receiver. The system is equipped with positioning elements making it possible to determine the instantaneous position of each of the receivers, and calculation elements making it possible to reconstruct an image of the seabed by taking account of the instantaneous micromovements of each of the receivers.

Sonar with deformable, flexible antenna and associated method of signal processing to form a synthetic antenna

Frontal sonar for observing the seafloor, characterized in that it includes: elements for insonifying a seafloor area divided into M sectors, able to perform a characteristic insonification of each sector of the area during an operation recurrence of the sonar; and receiving elements including a physical antenna consisting of an array of K transducers, the antenna being lacunar and thus ambiguous, so that it defines N image lobes, and in that each of the characteristically insonified sector is associated with a single image lobe defined by the antenna, so that the antenna ambiguity is removed.

Frontal sonar

A synthetic antenna sonar system, includes:

Growing community of inventors

Meounes les Montrieux, France

Frédéric Jean