Accession Number:

ADD020407

Title:

Bow Riding Unmanned Water-Borne Vehicle

Descriptive Note:

Patent application, filed 30 Jul 2009

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2009-07-30

Pagination or Media Count:

19.0

Abstract:

A system and method are provided for launching and recovering an unmanned, water-borne vehicle UWBV from a mother ship. The UWBV mimics the behavior of dolphins and is positioned ahead of the ship in preparation for bow riding. The UWBV uses a guidance system to position and keep in the bow wave. A high-frequency HF sonar transceiver array aboard the ship computes and sends course corrections to maintain the UWBV within the bow wave. The frequency range of the HF array can be 100 kHz or higher due to the short distance between the ship and the UWBV. Accordingly, the HF array can have a small aperture allowing for accurate bearing resolution. Course corrections can be sent on a near-continuous basis such that changes in thrust and rudder angle can be minimized to allow for accurate control of the UWBV.

Subject Categories:

  • Marine Engineering
  • Acoustic Detection and Detectors
  • Underwater and Marine Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE