Accession Number:

ADD018723

Title:

Underwater Defense System

Descriptive Note:

Patent, Filed 22 Aug 96, patented 8 Jul 97

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1997-07-08

Pagination or Media Count:

7.0

Abstract:

A communications system of an underwater defense system is decoupled from an unmanned underwater vehicle UUV when the UUV is deployed under the surface of the water. A housing attached to the UUV has a communications wire spooled therein with a first end of the wire coupled to the UUV. Once underwater. the housing separates from the UUV causing the communications wire to he paid out from the housing. As a result, a pulling force is applied to the housing via the communications wire. Communications electronics are coupled to a second end of the communications wire. The communications electronics includes an RF antenna switchably coupled to an RF receiver operating at a first frequency and to an RF transmitter operating at a second frequency. A buoy is coupled to the communications electronics to float same to the surface of the water such that the RF antenna breaks the surface of the water. A drag drogue depends from the housing to supply a drag force hat offsets the pulling force to maintain the buoy at the surface of the water and the RF antenna above the surface of the water.

Subject Categories:

  • Submarine Engineering
  • Command, Control and Communications Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE