Accession Number : ADD001513
Title : Multi-Channel Optical Correlator System.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Bromley,Keith
Report Date : 11 Jun 1974
Pagination or Media Count : 7
Abstract : The patent discloses a multi-channel optical correlation system which employs non-coherent light to illuminate a mask having a plurality of linearly disposed channels, each of which has recorded information defined by variations in opacity along its linear length. The non-coherent light source is modulated as a function of an unknown input signal and an image of the illuminated mask is formed in a selected image plane. The transmitted image is swept along the axes of the linearly disposed channels in synchronism with the time period of the unknown input signal and means is provided for temporally integrating the light intensity of the swept image along the linear length of each channel. A peak intensity of illumination within any of the channels of the resultant integrated image of the mask at the image plane indicates substantial correlation of the input signal with the recorded information in that particular channel.
Descriptors : *Correlators, *Optical data, *Image processing, *Patents, Signal processing, Channels, Optical images, Opacity
Subject Categories : Optics
Distribution Statement : APPROVED FOR PUBLIC RELEASE