Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1981-09-25
1984-05-22
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 73, G01S 902
Patent
active
044504454
ABSTRACT:
A pulse width and amplitude control apparatus wherein an analog Doppler to digital pulse converter provides pulses to the up input of an up/down counter in the presence of a noise input or a Doppler input, and a second analog Doppler to digital pulse converter applies pulses with greater frequency to the down input of the up/down counter when a Doppler signal exceeding a predetermined threshold is present, so that a low or no signal condition increases and a high signal condition decreases the transmit pulse envelope.
REFERENCES:
patent: 3614719 (1971-10-01), Treacy
patent: 4063238 (1977-12-01), Conner, Jr.
Conner, Jr. Leo B.
Nelson Robert N.
Gordon M. R.
Motorola Inc.
Parsons Eugene A.
Wilbur Maynard R.
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