Azimuth-stacked radar method and apparatus

Details Azimuth-stacked radar method and apparatus Azimuth-stacked radar method and apparatus

1989-11-27

1991-11-19

Barron, Jr., Gilberto

Communications: directive radio wave systems and devices (e.g.,

Determining direction

Monopulse

342157, 342158, G01S 1344, H01Q 322

Patent

active

050669567

ABSTRACT:
An azimuth-stacked radar method and apparatus of the type typically used for surveillance employs a mechanically-rotating antenna comprising horizontal end-fed rows of antenna radiating elements with phase shifter control on each row together with a monopulse elevation manifold to generate an elevation sum and difference beam pair. Additionally, this radar employs a waveform comprising multiple subpulses at different frequencies with sufficient separation between the subpulses at each frequency to spread them in azimuth to form a beam cluster and employs mechanical antenna rotation and phase-responsive elevation scanning. The scanning is accomplished in a way that will permit advantageous avoidance of ground clutter and other uninteresting radar reflectors.

REFERENCES:
patent: 3344426 (1967-09-01), Long
patent: 3512156 (1970-05-01), Caruday et al.
patent: 3886547 (1975-05-01), Bottenberg
patent: 4034374 (1977-07-01), Kruger
patent: 4118703 (1978-10-01), Williams
patent: 4253098 (1981-02-01), Blythe
patent: 4868574 (1989-09-01), Racb

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