Proximity indication with means for computing the distance from

Details Proximity indication with means for computing the distance from Proximity indication with means for computing the distance from

1974-08-07

1976-05-25

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 65LC, 343 11R, 343112CA, G01S 956

Patent

active

039597938

ABSTRACT:
A method and apparatus for determining the distance to a secondary surveillance radar (SSR) station from an own transponder station when another transponder station lies within a monitored region surrounding the own station. The distance information is utilized to modify the operating mode of a proximity indicating system at the own station.

REFERENCES:
patent: 3071767 (1963-01-01), Freedman
patent: 3312971 (1967-04-01), Gehman
patent: 3316550 (1967-04-01), Prichodjko
patent: 3460060 (1969-08-01), Abruzzo et al.
patent: 3715758 (1973-02-01), Sender

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