Pyro-acoustic generator for protecting submarines and surface ships

The present invention relates to a pyroacoustic device constituting a jammer or decoy for protecting sub-marines or surface vessels. The present invention provide a pyroacoustic device for protecting submarines or surface vessels, the device being characterized by the fact that it comprises:a structure () suitable for forming a positioning device for controlled positioning under water; anda case () connected to the positioning device, which case () contains:a plurality of charges () each suitable for generating an acoustic effect; andcontrol means () suitable for initiating said plurality of charges () in a controlled sequence.