Accession Number : ADD018676

Title :   Method and System for Detecting Objects at or Below the Water's Surface

Descriptive Note : Patent, Filed 9 Aug 95, patented 8 Jul 97

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Maccabee, Bruce S

Report Date : 08 Jul 1997

Pagination or Media Count : 6

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 :   *UNDERWATER OBJECT LOCATORS, *ACOUSTIC DETECTORS, *PATENTS, ACOUSTIC WAVES, ACOUSTIC DETECTION, PULSED LASERS, LASER BEAMS, UNDERWATER TARGETS

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE