Frequency-agile fire control radar system

Details Frequency-agile fire control radar system Frequency-agile fire control radar system

1977-04-08

1978-12-19

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 728

Patent

active

041308212

ABSTRACT:
A signal processing system for simultaneously transmitting a plurality of rrier frequencies and receiving certain of said frequencies to the exclusion of others. In a radar system employing the disclosed technique, a CW carrier and pulsed modulated carrier are transmitted simultaneously from a single antenna. The CW carrier and the echo frequency from the modulated carrier are received by a receiver protector circuit which passes the low power echo of the pulse modulated carrier to receiver processing circuitry while suppressing the CW carrier having a power level above a predetermined threshold. The receiver protector enables the use of plural carrier frequencies in a frequency agile system with decreased frequency separation.

REFERENCES:
patent: 3688313 (1972-08-01), Kern
patent: 3797018 (1974-03-01), Thompson
patent: 4044357 (1977-08-01), Goldie

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