Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1976-10-04
1978-01-03
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343106D, 364487, G01S 502
Patent
active
040670147
ABSTRACT:
A processing apparatus for determining the frequency of a supplied signal is usable in a Doppler microwave landing system. The apparatus derives scalar signals representative of signal frequency and amplitude and computes the average value of the scalar signals over a number of time intervals prior to dividing the signals to produce an output signal representative of average supplied signal frequency.
REFERENCES:
patent: 3747105 (1973-07-01), Payne
patent: 3819920 (1974-06-01), Goldfischer
Lopez Alfred R.
Wheeler Harold A.
Blum T. M.
Hazeltine Corporation
Wilbur Maynard R.
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