Accession Number : ADD002244

Title :   Navigation Aid.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Stachnik,William J

Report Date : 04 Nov 1975

Pagination or Media Count : 5

Abstract : The patent relates to an apparatus for monitoring the underwater luminous field with an underwater vehicle, to determine, while submerged, the conditions of sea surface and cloud cover and locate the vehicle's position by solar navigating techniques. The apparatus measures underwater polarization of solar light in magnitude and its spatial distribution as a function of time and thus determines the condition of sea surface and cloud cover, while submerged at operational depths.

Descriptors :   *Underwater vehicles, *Underwater navigation, *Polarimeters, *Patents, Sunlight, Polarization, Spatial distribution, Navigational aids, Ocean surface

Subject Categories : Marine Engineering
      Underwater and Marine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE