Communications: directive radio wave systems and devices (e.g. – Radar transponder system – Iff or sif
Patent
1992-06-15
1993-11-16
Pihulic, Daniel T.
Communications: directive radio wave systems and devices (e.g.,
Radar transponder system
Iff or sif
342 46, G01S 1380
Patent
active
052627845
ABSTRACT:
A system for locating and identifying aircraft while on an airport. Each aircraft has an IFF transponder which is interrogated from on board the aircraft to produce replies at a slower rate than normal interrogation rates. A plurality of receiving stations at different locations about the airport measure the time of arrival of the replies and decode the replies. The time of arrival information is forwarded to a central receiving station along with the decode reply data. Using conventional correlation techniques, the location of each aircraft is established through the time of arrival information as well as the identity of the aircraft from the decoded reply data.
REFERENCES:
patent: 5144315 (1992-09-01), Schwab et al.
Drobnicki Paul F.
Goodrich Fred N. S.
Schwab Carl E.
Cardion, Inc.
Pihulic Daniel T.
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