Communications: directive radio wave systems and devices (e.g. – Aircraft landing system – Microwave landing system
Patent
1996-09-03
1998-11-17
Lobo, Ian J.
Communications: directive radio wave systems and devices (e.g.,
Aircraft landing system
Microwave landing system
342 33, G01S 138, G01S 1375
Patent
active
058382763
ABSTRACT:
A microwave radio frequency landing system includes an aircraft borne transmitter/receiver (transceiver) and a ground unit. The ground unit comprises a dielectric material lens and a transponder module array. The transceiver transmits pulsed interrogation signals to the ground unit. The dielectric material lens focuses the pulsed signals onto the transponder module array. The transponder modules illuminated by the pulsed signals transmit continuous wave return signals to the aircraft. Each continuous wave return signal comprises four tones, which are used by the aircraft to determine azimuth and glide slope of the aircraft, carried on a microwave carrier. In each transponder module which receives the pulsed signals from the aircraft transceiver, the microwave carrier is phase inverted for the duration of each pulse of the pulsed signals. The phase inversions on the microwave carrier are used by the aircraft to determine the range, velocity and acceleration of the aircraft with respect to the ground unit.
REFERENCES:
patent: 3295132 (1966-12-01), Chapman
patent: 3680089 (1972-07-01), Sanders
patent: 3699571 (1972-10-01), Sanders
patent: 3713149 (1973-01-01), Bruner et al.
patent: 3798646 (1974-03-01), Buehler et al.
patent: 4677442 (1987-06-01), Enein
patent: 4698636 (1987-10-01), Marlow et al.
patent: 4723123 (1988-02-01), Marlow et al.
patent: 4806932 (1989-02-01), Bechtel
patent: 5045859 (1991-09-01), Yetter
patent: 5223839 (1993-06-01), Grossman
Chapman Aubrey I.
Ridpath George F.
Lobo Ian J.
Quimby David W.
LandOfFree
Microwave energy implemented aircraft landing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microwave energy implemented aircraft landing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave energy implemented aircraft landing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-888512