Accession Number:

ADD019738

Title:

Localization of a Submerged Tow Vehicle (Lost)

Descriptive Note:

Patent Application, Filed 23 Jun 2000

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2000-06-23

Pagination or Media Count:

19.0

Abstract:

The location of a submerged tow vehicle LOST system provides a device for accurately determining a position of an underwater vehicle towed by a surface craft or aircraft, such as a helicopter. The LOST system utilizes five sources of input data to compute a best estimate of the towed vehicles position. These are 1 high resolution bathymetry data in an area of the towed vehicles transit, 2 ocean depth at a position of the towed vehicle, 3 the towed vehicles velocity over sea bottom, 4 a slant range from the towed vehicle to a known reference point, and 5 a position and course of the towing vehicle. The LOST system is comprised of a slant range updater, a maximum likelihood estimator, a constrained adaptive tracker and a slant range corrector.

Subject Categories:

  • Underwater and Marine Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE