Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1983-05-05
1984-12-18
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 7VM, G01S 1360
Patent
active
044893213
ABSTRACT:
A Doppler radar speed sensing system includes a microwave transceiver and a circuit for generating an input pulse train having pulsewidths related to the ground speed of a vehicle carrying the system. A signal processor includes a microprocessor which executes a signal processing algorithm which converts the input pulse train to an output pulse train having desired characteristics. For example, the output pulse train has output pulses with pulsewidths and frequency related to the vehicle ground speed. The output signal pulse train responds rapidly to changes in sensed ground speed, but is insensitive to Doppler signal dropout.
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Egawa, "A Microwave Doppler Radar Velocity Meter for Construction Machinery", 1982, SAE Technical Paper No. 821083.
Richardson et al., "True Ground Speed Measurement Techniques", 1982, SAE Technical Paper No. 821058.
Tsuha et al., "Radar True Ground Speed Sensor for Ag. & Off-Road Equipment", 1982, SAE Technical Paper No. 821059.
Burde Carl M.
Hoffa Robert J.
Barron Jr. Gilberto
Deere & Company
Wilbur Maynard R.
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