Pulsed coherent doppler radar with frequency agility

Details Pulsed coherent doppler radar with frequency agility Pulsed coherent doppler radar with frequency agility

1980-07-29

1982-07-06

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 171PF, 343 172PC, G01S 1324

Patent

active

043386040

ABSTRACT:
A pulse coherent Doppler radar allows both transmission frequency agility and pulse repetition frequency agility in association with phase encoding which accomplishes the transmission frequency agility by the use of a transmission oscillator, the nominal frequency which may be modified by a microcomputer, a local oscillator, a reference oscillator, and a phase-locked loop having a phase comparator with the oscillator and a mixer for receiving the signals issued by the oscillator and the signal issued by the local oscillator.

REFERENCES:
patent: 3981012 (1976-09-01), Brault et al.
patent: 4071844 (1978-01-01), Hopwood et al.
patent: 4099137 (1978-07-01), Alm, Jr. et al.
patent: 4155088 (1979-05-01), Taylor, Jr. et al.

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