Transmission frequency diversity radar

Details Transmission frequency diversity radar Transmission frequency diversity radar

1964-10-27

1982-10-26

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 18E, G01S 1324

Patent

active

043564909

ABSTRACT:
1. A transmission frequency diversity radar system comprising an oscillator that is tunable over a frequency band to produce a signal for radar transmission, means for tuning said oscillator randomly on a random frequency basis, and means for frequency tracking the signal being transmitted including a variable frequency local oscillator, means to sweep the local oscillator over a range of frequencies within the pulse width time of the radar transmitted signal but after said transmission oscillator is tuned and modulator means responsive to the transmitted signal for holding said variable local oscillator on the proper tuning frequency.

REFERENCES:
patent: 3050726 (1962-08-01), Laurent
patent: 3114148 (1963-12-01), Lederman
patent: 3163862 (1964-12-01), Jenny
patent: 3374480 (1968-03-01), Russell et al.
patent: 3858219 (1974-12-01), Hull
patent: 3866224 (1975-02-01), Porter et al.
patent: 3981012 (1976-09-01), Brault et al.
patent: 4068235 (1978-01-01), Peters, Jr. et al.
patent: 4135189 (1979-01-01), Josse
patent: 4157546 (1979-06-01), Brault et al.

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