Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1976-04-01
1978-03-14
Hubler, Malcolm F.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
G01S 944
Patent
active
040793770
ABSTRACT:
An FM-CW vehicular distance and relative speed measuring device which compares instantaneous reflection signal frequency to the instantaneous FM-CW transmitted frequency to derive distance (range) and speed information. Searching means including a mixer, frequency programmer, and logic circuits evaluates a plurality of fractional range increments for signal presence and Doppler spectrum evaluation to determine relative velocity with sense. The FM-CW waveform is a sawtooth and means are included for blanking the sawtooth flyback.
REFERENCES:
patent: 3373426 (1968-03-01), Miller, Jr.
patent: 3898656 (1975-08-01), Jensen
patent: 3898659 (1975-08-01), Jensen et al.
patent: 3900872 (1975-08-01), Jensen et al.
patent: 3905034 (1975-09-01), Jensen et al.
patent: 3952303 (1976-04-01), Watanabe et al.
Klippel Dieter
Neininger Guenter
Sautter Eike
zur Heiden Dietmar
Hubler Malcolm F.
International Standard Electric Corporation
O'Neil William T.
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