Communications: directive radio wave systems and devices (e.g. – Radar ew – Ecm
Patent
1973-04-16
1992-10-06
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
Ecm
H04K 300, G01S 736
Patent
active
051535947
ABSTRACT:
An electronic counter-measure system for installation on an aircraft is disclosed. The system includes an interferometer transmitter comprised of a plurality of repeater amplifier circuits connected in parallel arrangement. A pair of receiving antennas on the aircraft senses an incoming radar signal when the aircraft is being tracked by a fire control radar and initiates the operation of the plurality of repeater amplifier circuits in such a manner that they generate out of phase radio signals of different amplitudes which are respectively transmitted by associated spaced transmitting antennas on the aircraft. These radio signals induce a time varying tilt in the wavefront of the echo signal being returned to the tracking radar with the result that the radar indicates apparent aircraft angular accelerations that capture the radar tracking servo and tax the dynamic stability of the elements in the intercept loop, particularly the missile.
REFERENCES:
patent: 2567261 (1951-09-01), Williams
patent: 2676317 (1954-04-01), Purington
patent: 3072848 (1963-01-01), DeSocio
patent: 3171125 (1965-02-01), Butler
patent: 3517388 (1970-06-01), Vermillion
patent: 3568194 (1971-03-01), Wilson
patent: 3760418 (1973-09-01), Cash et al.
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