System for correlating the operating frequencies of two variable

Details System for correlating the operating frequencies of two variable System for correlating the operating frequencies of two variable

1980-02-27

1982-05-18

Grimm, Siegfried H.

Oscillators

Plural oscillators

Synchronized, triggered or pulsed

331 90, 331172, 343 5AF, G01S 1300, H03L 700

Patent

active

043307604

ABSTRACT:
Two variable-frequency microwave generators, i.e. a coaxial magnetron producing outgoing waves and a voltage-controlled oscillator emitting a heterodyning signal for incoming waves of a radar transceiver, are continuously tuned by a pilot signal modifying their operating frequencies with a predetermined constant separation. To maintain this correlation, the tuning circuit of at least one microwave generator responds to the pilot signal through the intermediary of a read-only memory which, on being directly or indirectly addressed by that signal, emits stored setting instructions for the respective generator.

REFERENCES:
patent: 3358282 (1967-12-01), Wasterlid
patent: 4225829 (1980-09-01), Kumagai

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