Accession Number:

ADD010699

Title:

Time Encoded Spatial Display.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1983-05-10

Pagination or Media Count:

76.0

Abstract:

A time compressed radar display system for presenting to the operator radar return video which has been accumulated over a relatively long period of time in a very short time span, preferably at TV frame rates. A scan converter receives the radar position data in polar coordinate format and converts it to rectangular coordinate format. Each of the rectangular cells, resulting from the scan conversion, is provided with an address. The radar video is continuously converted from analog to digital. Memory and comparison logic are used for determining and storing the highest value of video data occurring in each of the data cells, during a predetermined number n of revolutions of the radar scanning antenna. Logic circuitry is also provided to determine and store the number of antenna revolutions over the most recent n scans of the antenna, in which the video level exceeded a predetermined threshold for each of the addressable cells.

Subject Categories:

  • Electrical and Electronic Equipment
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE