Accession Number : ADD017914
Title : Method and System for Detecting Objects at or Below the Water's Surface.
Descriptive Note : Patent Application, filed 9 Sep 95,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Maccabee, Bruce S
PDF Url : ADD017914
Report Date : 09 Sep 1995
Pagination or Media Count : 16
Abstract : A method and system are provided for detecting objects at or below a surface of a body of water. A focused beam of amplitude varying electromagnetic radiation, e.g., a pulsed laser beam, is directed through the air towards the water's surface. Acoustic energy under the water's surface is monitored for any acoustic return that may be generated in the water as a result of the beam being incident on either an object at the water's surface or the water's surface above an object.
Descriptors : *PATENT APPLICATIONS, *ACOUSTIC DETECTION, *PULSED LASERS, *LASER BEAMS, *UNDERWATER, WATER, ACOUSTIC WAVES, SURFACES, ELECTROMAGNETIC RADIATION, AMPLITUDE
Subject Categories : Lasers and Masers
Acoustic Detection and Detectors
Hydrology, Limnology and Potamology
Distribution Statement : APPROVED FOR PUBLIC RELEASE