Accession Number:

ADD014327

Title:

Optical Beamformers.

Descriptive Note:

Patent, Filed 12 Feb 88, patented 29 Aug 89,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Lee, John N.
• Athale, Ravindra A.
• Rolsma, B.

Report Date:

1989-08-29

Pagination or Media Count:

12.0

Abstract:

This patent discloses a beamforming system, particularly useful for seismic exploration or undersea surveillance, in which data processing of the system is done optically. Sensor outputs are subjected to plural sets of time delays, and the system beams formed optically. Four embodiments are presented of the optical processing hardware. JHD

Descriptors:

• *BEAM FORMING
• *OPTICAL PROCESSING
• *PATENTS
• *ELECTROOPTICS
• *UNDERWATER SOUND
• *ACOUSTIC ARRAYS
• DATA PROCESSING
• DELAY
• DETECTORS
• OPTICAL EQUIPMENT
• OPTICAL PROPERTIES
• OUTPUT
• SEISMOLOGY
• TIME INTERVALS
• UNDERSEA SURVEILLANCE

Subject Categories:

• Optics
• Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE