Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1976-10-08
1978-10-03
Hubler, Malcolm F.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 9, G01S 944
Patent
active
041187016
ABSTRACT:
An FM/CW radar system with improved noise discrimination in which the received signal is multiplied by a sample of the transmitted signal, and the product signal is employed to deflect a laser beam as a function of frequency. The position of the beam is thus indicative of a discrete frequency, and it is detected by the frequency encoded positions of an array of photodiodes. The outputs of the photodiodes are scanned, then threshold detected, and used to obtain the range and velocity of a target.
REFERENCES:
patent: 2467455 (1949-04-01), Aurell
patent: 3483557 (1969-12-01), Skenderoff et al.
patent: 3526893 (1970-09-01), Skenderoff et al.
patent: 3569967 (1971-03-01), Gendreu et al.
patent: 3732565 (1973-02-01), Symaniec et al.
Brey Hans
Fletcher James C. Administrator of the National Aeronautics and Space
Geise, Jr. Philip E.
Hubler Malcolm F.
Manning John R.
Porter George J.
Wofford, Jr. L. D.
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