Accession Number:

ADD002136

Title:

Radar Adaptive Video Processor.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s):

Report Date:

1974-09-24

Pagination or Media Count:

11.0

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.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE