Proximity indication with range and bearing measurements

Details Proximity indication with range and bearing measurements Proximity indication with range and bearing measurements

1975-04-15

1977-06-07

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 65LC, 343106R, G01S 956

Patent

active

RE0292605

ABSTRACT:
Proximity indication and evaluation for aircraft, using only the signals emitted by secondary surveillance radar and cooperating transponders, to detect intrusion in a monitored proximity volume and determine slant range and relative bearing to the intruder.

REFERENCES:
patent: 1135604 (1915-04-01), Meissner
patent: 2112283 (1938-03-01), Fritz
patent: 2531918 (1950-11-01), O'Brien
patent: 2586810 (1952-02-01), Frum
patent: 2826378 (1958-03-01), Childs, Jr.
patent: 2829364 (1958-04-01), Latimer, Jr.

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