Accession Number : ADD006623

Title :   Scheme for Terminal Guidance Utilizing Acousto-Optic Correlator.

Descriptive Note : Patent,


Personal Author(s) : Berg ,Norman J ; Udelson,Burton J

Report Date : 07 Nov 1978

Pagination or Media Count : 20

Abstract : This patent discloses an analog terminal guidance system and device. One dimensional strips of a target scene are stored in a line in a longitudinally extending acousto-optic device as index of refraction variation pattern signals. Real time signals corresponding to the scene actually being viewed by the vehicle are propagated across the stored signals, and the results of an acousto-optic correlation are utilized to determine X and Y error. Scale error is compensated for by changing the data rate of the real time signals, and 2 1/2 and 3D schemes improve the accuracy of the correlation. (Author)

Descriptors :   *Patents, *Terminal GUIDANCE, *Acoustooptics, Optical correlators, Laser beams, Accuracy, Refractive Index, Acoustic signals, Variations, Analog systems, Data rate, Errors, Real time, Detectors, Pin diodes, Targets, Correlation techniques, Images, Computers

Subject Categories : Acoustic Detection and Detectors
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE