High resolution radar system

Details High resolution radar system High resolution radar system

1982-04-28

1987-08-18

Tubbesing, T. H.

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

Determining direction

Monopulse

342201, G01S 1344

Patent

active

046880437

ABSTRACT:
A radar system for tracking airborne targets, in which the transmitted pulse signal is swept over a predetermined frequency range (3). A local oscillator (15) in the receiver is swept over a similar frequency range the L.O. sweep modulation being initiated (20) by the first significant target return signal. Reflectors on the target at different ranges therefore produce different I.F.s in the receiver. Discrimination between the various target reflector features is thus achieved by filtering (25, 27, 29) the I.F. signals in a series of small bands, each band corresponding to a particular target-feature range. Azimuth, elevation and magnitude of a target feature can thus be obtained for each range cell.

REFERENCES:
patent: 3303497 (1967-02-01), Chubb
patent: 3354456 (1967-11-01), Caputi, Jr.
patent: 3720950 (1973-03-01), Vehrs, Jr.
patent: 3795913 (1974-03-01), Kosowsky et al.
patent: 3878525 (1975-04-01), Alpers
patent: 4307399 (1981-12-01), Love et al.
patent: 4346382 (1982-08-01), Bosc et al.

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