Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1967-03-16
1980-05-27
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 7PF, 102214, G01S 924, F42C 1304
Patent
active
042053161
ABSTRACT:
An FM-CW radar distance measuring system and a method for reducing the amuity and enhancing the accuracy in said system. The system disclosed utilizes three triangular wave modulators which modulate the RF output of the transmitter. The target return signal is mixed with a portion of the transmitted signal which has been delayed by an amount of time equal to the time required for a signal to travel to the target and return. This mixed signal is filtered to select the doppler component, and this component is amplified to utilize range information.
REFERENCES:
patent: 3068471 (1962-12-01), Erst
patent: 3109172 (1963-10-01), Hardinger et al.
patent: 3173138 (1965-03-01), Erst
patent: 3229286 (1966-01-01), Samuel et al.
patent: 3363248 (1968-01-01), Nicodemus
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
The United States of America as represented by the Secretary of
Tubbesing T. H.
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