Accession Number : ADD006454

Title :   Electronic Heterodyning in an Optical Detector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Miller,Walter E , Jr ; Mitchell,Robert R

Report Date : 22 May 1979

Pagination or Media Count : 4

Abstract : An optical detector, being operated in a non-linear portion of its response curve, is used as an electronic heterodyning element for two applied frequencies. They may be applied with two modulated light sources, or one source and an alternating current bias component to provide a preselected sum or difference output signal for selectable input frequencies allowing optical tracking of a target. (Author)

Descriptors :   *Patents, *Optical detectors, Heterodyning, Bias

Subject Categories : Cybernetics
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE