Non-jammable plural frequency radar system

Details Non-jammable plural frequency radar system Non-jammable plural frequency radar system

1966-08-31

1976-09-14

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 18E, G01S 736

Patent

active

039810135

ABSTRACT:
A radar system for transmitting and receiving a plurality of signals of derent frequency simultaneously to prevent the possibility of jamming the system. Two signals of different frequency are produced comprising the upper and lower sidebands of a carrier frequency. These signals are simultaneously radiated and upon reflection are received in two receiver channels centered on frequencies identical with the transmitted frequencies. The received signals are then mixed to produce an intermediate frequency which is again mixed with a local oscillator signal whereupon range and tracking information may be derived.

REFERENCES:
patent: 3082418 (1963-03-01), Milosevic
patent: 3302161 (1967-01-01), Ellison

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