Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1981-03-30
1983-11-08
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 7VM, 340 52R, G01S 944
Patent
active
044145489
ABSTRACT:
A vehicle velocity sensing system is disclosed which includes a doppler velocity sensor (10, 12) and means for reducing spurious signal components in the output of the sensor. An accelerometer (30, 32) is mounted so as to sense vehicle accelerations along the boresight of the doppler velocity sensor. A processor (34, 36) processes the output of the accelerometer to provide a signal which corresponds essentially to the spurious components of the output of the doppler radar velocity sensor. A signal combiner (38, 40) combines the output of the processor with the output of the doppler velocity sensor to derive a corrected output signal which is more closely indicative of the velocity of the vehicle.
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Malmstadt, Enke and Toren, Electronics for Scientists, W. A. Benjamin, Inc., New York, 1963, pp. 190-192.
Doppler Navigation: Clegg and Thorne, "Proceedings of the Institution of Electrical Engineers," vol. 105, Part B, Suppl. No. 9, pp. 235-247, May 1958.
Carpenter Daniel D.
Lanning Ronald L.
Gordon M.
TRW Inc.
Wilbur Maynard R.
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