Accession Number:

ADD008988

Title:

Three & Four Product Surface-Wave Acousto-Optic Time Integrating Correlators.

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE ARMY WASHINGTON DC

Report Date:

1981-11-02

Pagination or Media Count:

18.0

Abstract:

This abstract discloses a method and device for processing spread-spectrum and other wideband communications and radar signals to obtain three and four product correlated signals. A laser beam is split and shaped into first and second sheet beams. The first beam is directed to a first acousto-optic medium where it is doubly diffracted by first and second signals. The second beam is directed to a second acousto-optic medium which is spatially rotated 90 degs relative to the first acousto-optic medium where the second sheet beam is either singly diffracted by a third signal or doubly diffracted by a third signal and a fourth signal. The diffracted sheet beams are shaped into square beams, combined and directed to a photodiode area array.

Subject Categories:

  • Line, Surface and Bulk Acoustic Wave Devices
  • Acoustooptic and Optoacoustic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE