Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1981-07-10
1984-03-20
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
G01S 902
Patent
active
044384351
ABSTRACT:
The DME pulse pair is followed by a third, steep-edge pulse. The time marks are divided from the third pulse. To ensure that no random pulses are evaluated as the third pulse, the pulse pairs are still evaluated for decoding and to control tracking, while the third pulse can be evaluated only during a given time after the reception of the pulse pair. The novel interrogators and transponders can also cooperate with existing interrogators and transponders, in which case only the improvement in accuracy is lost.
REFERENCES:
patent: 3742496 (1973-06-01), Jezo
patent: 3919708 (1975-11-01), Pudsey
patent: 3934251 (1976-01-01), Spratt
Ecklundt Hinrich
Hofgen Gunter
Gordon M. R.
Hill Alfred C.
International Standard Electric Corporation
O'Halloran John T.
Wilbur Maynard R.
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