Accession Number:

ADD010081

Title:

Interleaved Sweep Radar Display for Improved Target Detection.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1982-12-14

Pagination or Media Count:

8.0

Abstract:

A system, which interfaces with a radar indicator, for improving signal-to-noise ratio SNR and enhancing the detection of moving targets includes an analog-to-digital AD converter, an integrator, a digital memory, a digital-to-analog DA converter, and a synchro-to-digital converter. Radar video is converted to digital signals which are integrated and stored in memory. The angle signal from the antenna pedestal synchro is fed to the synchro-to-digital converter and stored in memory. The contents of the memory is processed, converted to analog form, and fed to the indicator. The radar provides a number M of sweeps within each beamwidth, or angular sector, of the antenna during each antenna scan. Contiguous sets of M sweeps are added to form batches. The signal content for each batch is displayed on the indicator in the angular sector which is identified with the M sweeps. The width of each sector is approximately a beamwidth. Within each sector a number N of batches, which are formed during N successive scans, is displayed on the indicator such that the batch formed during the latest scan appears at the clockwise boundary of a sector and the batch formed during the oldest scan appears at the counter-clockwise boundary.

Subject Categories:

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

Distribution Statement:

APPROVED FOR PUBLIC RELEASE