Semiautomatic jam-accept (SAJAC) decider for mode-4 of the IFF m

Details Semiautomatic jam-accept (SAJAC) decider for mode-4 of the IFF m Semiautomatic jam-accept (SAJAC) decider for mode-4 of the IFF m

1970-09-03

1995-06-20

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Radar transponder system

Iff or sif

342 13, G01S 1378, G01S 1380

Patent

active

054264340

ABSTRACT:
A semiautomatic jam-accept decider for use in an interrogator responsor installation in which an operator selects a particular range and azimuth of interest. The decider can make Accept decisions concerning IFF Mark XII Mode 4 reply targets in the presence of extraneous signals. Enemy spoofing or jamming of the Mode by transmitting on the reply frequency can also be detected and the position of the enemy aircraft can be determined.

REFERENCES:
patent: 3058104 (1962-10-01), Garfinkel et al.
patent: 3182310 (1965-05-01), Humpherys
patent: 3357016 (1967-12-01), Peronneau et al.
patent: 3368219 (1968-02-01), Gardner
patent: 3440651 (1969-04-01), Fluhr et al.
patent: 3573823 (1971-04-01), French
patent: 3750163 (1973-07-01), Hecker
patent: 3983482 (1976-09-01), Doherty
patent: 4074263 (1978-02-01), Sullivan, Jr.
patent: 4278976 (1981-07-01), Alpers et al.
patent: 5101208 (1992-03-01), Parker

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