Monitoring device for a radio navigation system of the doppler V

Details Monitoring device for a radio navigation system of the doppler V Monitoring device for a radio navigation system of the doppler V

1981-02-18

1983-11-22

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343402, G01S 140

Patent

active

044172508

ABSTRACT:
A device for monitoring a Doppler VOR system emitting sinusoidal signals at a frequency of 30 Hz, one called "reference" and the other called "variable" whose phase varies with respect to that of the first signal, comprises at least one sensor close to the Doppler VOR system, a first processing device supplying the information emitted by the VOR system in the direction of the sensor and a second device for processing the signal received by the central antenna, said devices comprising means for separating the two upper and lower side-bands of the VHF carrier wave.

REFERENCES:
patent: 3115633 (1963-12-01), Kramer et al.
patent: 3290685 (1966-12-01), Steiner
patent: 3778831 (1973-12-01), Marchand
patent: 3958244 (1976-05-01), Lee et al.
patent: 4005427 (1977-01-01), Hofgen
patent: 4195262 (1980-03-01), King
"VOR and Doppler VOR"by Hofgen, Electrical Communication, vol. 50, No. 4, 1975, pp. 245-248.
"Doppler VOR Ground Equipment"by W. J. Crone et al., Electrical Communication, vol. 43, No. 2, 1968, pp. 143-149.
"The Philips Doppler VOR Beacon RN200"by F. L. van den Berg, Philips Telecommunication Review, vol. 34, No. 1, Apr. 1976, pp. 1-10.
"The Philips VOR Beacon Type RN100"by F. L. van den Berg et al., Philips Telecommunication Review, vol. 32, No. 3, Aug. 1974, pp. 105-116.

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