Pulse doppler radar system

Details Pulse doppler radar system Pulse doppler radar system

1987-11-09

1989-05-02

Cangialosi, Salvatore

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

Plural radar

342 99, 342106, 342201, G01S 1352, G01S 742

Patent

active

048272639

ABSTRACT:
A method of preventing interference between `friendly` pulse doppler radars when in action against a common target or adjacents targets. Despite considerable separation of the radar r.f's the pulsed signals have repeated sideband pulses which may be taken by another radar as a doppler-shifted echo. This problem is to a large extent alleviated by frequency modulating the r.f. transmission at a very low cycle rate of the order of one cycle per second and at a modulation rate sufficient to indicate to a receiving radar that the source could not be a target accelerating at such a high rate.

REFERENCES:
patent: 3386093 (1968-05-01), Mooney, Jr. et al.
patent: 3618083 (1971-11-01), Burley et al.
patent: 3754254 (1973-08-01), Jinman
patent: 4079376 (1978-03-01), Kirk, Jr.
patent: 4106018 (1978-08-01), Chihak et al.

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