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) : Waters,William M ; Linde,George J

Report Date : 14 Dec 1982

Pagination or Media Count : 8

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 (A/D) converter, an integrator, a digital memory, a digital-to-analog (D/A) 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.

Descriptors :   *Patents, *Moving target indicators, *Pulse integrators, *Radar equipment, *Analog to digital converters, *Display systems, *Digital to analog converters, *Target detection, Moving targets, Signal to noise ratio, Radar beams, Video signals, Memory devices, Angular motion, Central processing units, Computer applications, Feedback, Synchros, Accuracy

Subject Categories : Electrical and Electronic Equipment
      Computer Hardware
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE