Abstract: A mine emulation system includes a standard electronics section. The system can be reconfigured into several different mine shapes by the use of different end sections attached to the electronics section. The electronics sections can include an array of sensors, including magnetic, seismic, pressure and passive acoustic sensors. The electronics can be programmable such that the sensors can emulate the various mine types as well as differing mines within each type. An active acoustic communication system allows surface ships or RF buoy systems to communicate with the mine emulator. An operator can provide a release command to an acoustically operated release system via the acoustic communication system.

Abstract: An improved cable cutting system for an exercise mine or other underwater payload is provided. The system utilizes a pro-pressurized gas cartridge as the source of compressed gas to operate a cable cutter and anti-scouring system. A firing pulse initiates a bottle-punch actuator positioned in a manifold. The actuator punctures the sealed nipple of the gas cartridge. The released gas is directed through the manifold and injected directly into a cylinder that drives a piston. The piston is connected to a chisel that is driven forward to cut the cable. The released gas can also activate the anti-scouring system or, alternatively, additional cartridges/punches may be used for the anti-scoring system.

Abstract: An underwater sensing and communications node includes an underwater vehicle, target sensing capability mounted on a forward portion of the underwater vehicle, at least three passive acoustic sensors evenly distributed about a first circumferential region of the underwater vehicle, and at least three transceiving hydrophones evenly distributed about a second circumferential region of the underwater vehicle. A controller governs collection of sensed data and transmission of the sensed data into the underwater environment.