Accession Number : ADD002136

Title :   Radar Adaptive Video Processor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : MacArthur,John L ; Raff,Barry E

Report Date : 24 Sep 1974

Pagination or Media Count : 11

Abstract : The patent relates to adaptive thresholding to enhance target detections in the presence of clutter. A closed loop feedback system functions to maintain an average constant false alarm probability within three range intervals. Radar video signals are sampled, then compared with a thresholding signal comprised of a constant plus the feedback signal. Average constant false alarm probability is maintained by forcing the signal to a constant duty factor by use of pulse stretching. The feedback signal is filtered over the range intervals to adjust for range variations in clutter density.

Descriptors :   *Signal processing, *Patents, Adaptive systems, Video signals, Radar signals, Target detection, Closed loop systems, Feedback, Threshold effects

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE