An aircraft collision avoidance technique and system is described which has the capability of passively determining the positions of a plurality of aircraft within the range of a single ground site. The ground site will include a discrete address beacon transponder colocated with an air traffic control beacon and the transponder and beacon will transmit during scheduled intervals; the transponder providing site information and synchronizing information during alternate intervals. The airborne electronics includes a transponder-encoder-computer which computes, from uplinked site data and received replies of target aircraft to ground interrogations, target tracks by determining the differential time of arrival of transmissions and calculating necessary range and azimuth information.
A Passive DABS-CAS Design
1978
38 pages
Report
Keine Angabe
Englisch
Government Inventions for Licensing , Transportation Safety , Air Transportation , Collision avoidance , Patent application , Passive systems , Aviation safety , Time lag , Beacons , Measurement , Transponders , Tracking(Position) , Discrete address beacon systems , Air traffic control radar beacon systems
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