Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1979-04-23
1982-01-26
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343112CA, G01S 722
Patent
active
043131158
ABSTRACT:
Collision avoidance apparatus for assessing manoeuvres of a first vehicle (6) to avoid collision with other vehicles (22) in which closed regions are computed respectively associated with the other vehicles and which, if avoided by the first vehicle, will assure that the latter will not pass closer to the other vehicles than a predetermined distance (CPA). The periphery of each of said regions is defined by lines joining the following points:
REFERENCES:
patent: 3717873 (1973-02-01), Riggs
patent: 3725918 (1973-04-01), Fleischer et al.
patent: 4224621 (1980-09-01), Cornett et al.
Sperry Limited
Terry Howard P.
Tubbesing T. H.
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