The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 1987
Filed:
Feb. 03, 1984
Anthony E Spezio, Laurel, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A 3 or more - dimensional optical processor for simultaneously processing ree or more parameters from a coherent emitter via an acoustic Bragg cell. For a 3-D processor, two separate antenna arrays (azimuth and elevation) are connected to excite two sets of acoustic transducer arrays on one edge of the Bragg cell. Multiplexing is achieved by the appropriate choice of the transducer array apertures. One transducer array set may have a narrow aperture to produce one wide first grating lobe pattern or a fraction thereof in a given focal plane (nonredundant imaging). The other transducer array set may have a wider transducer array aperture to produce a plurality of smaller second grating lobes within the first grating lobe pattern in the focal plane (redundant imaging). One coordinate axis of the focal plane represents the frequency of the emitter. The other coordinate provides the elevation parameter for that frequency emitter by measuring the position of the nonredundant lobe relative to the center boresight axis. The azimuth parameter is then obtained for that frequency emitter by measuring the position of the small redundant lobe closest to the centroid of the nonredundant lobe relative to its null position for that particular redundant lube.