Naval Undersea Warfare Center – Newport Division
The Naval Undersea Warfare Center – Newport Division provides research, development, test and evaluation, engineering, and fleet support capabilities for submarines, autonomous underwater systems, and offensive and defensive undersea weapon systems, integrating existing and emerging technologies in support of undersea warfare.
Optical attenuation coefficient meter
An attenuation meter is provided for use in a water environment. In operation, a transmitter of the meter transmits a laser pulse focused to a size at a predetermined range….
Cylindrical antenna using near zero index metamaterial
A cylindrical antenna includes: a hollow cylinder having a height, an inner radius b, an axis, a cylindrical surface, and two ends; a ground plane on one end of the…
Buoyant helical twin-axial wire antenna
An antenna includes a polymer coating having a VLF/LF element and an HF/VHF element embedded therein. A blocking choke is interposed between the VLF/LF element and the antenna feed t…
Broadband cylindrical antenna and method
An antenna capable of being joined to an antenna feed and being positioned perpendicular to a ground plane includes a conductive cylinder having a longitudinal slot. The antenna feed is…
Slotted antenna with anisotropic magnetic loading
An antenna can be joined to an antenna feed and positioned perpendicular to a ground plane. The antenna includes a conductive radiator having a cylindrical portion. A slot is formed…
Extended range support module
An extended range support module for an undersea vehicle includes an outer hull capable of accommodating the undersea vehicle therein. A navigation module is positioned on the outer hull and…
Modular processing system for geoacoustic sensing
A system for analyzing a plurality of channels of data received from a sensor array. The system includes a data acquisition system that receives and independently processes each channel. A…
Carbon nanotube underwater acoustic thermophone
A carbon nanotube thermophone is provided. The thermophone includes high temperature rated shells as protective walls as the top and bottom housing of the thermophone with carbon nanotube sheets affixed…
Underwater acoustic carbon nanotube thermophone
A carbon nanotube thermophone is provided which includes a urethane frame having mounting holes at corners of the frame. Screw holes in the frame are provided for a cable holder….
System and method for the calibration of a...
A method is disclosed for calibration of a towed line array. In a low frequency band, calibration is performed using an acoustic field observed by reference standard hydrophones. The observations…
Underwater acoustic beacon location system
A method using a tow body and sensor array for locating an underwater location beacon is provided. The steps of the method are moving the body and array in a…