Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1974-06-12
1976-07-13
Tubbesing, T.H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 73, 343 172PC, G01S 956
Patent
active
039697258
ABSTRACT:
Disclosed is improved distance measuring equipment comprising an airborne FM coded, chirp, interrogator transmitter in combination with a weighted matched receiver in a ground transponder. The airborne transmitter produces a long low power frequency modulated output pulse. Detection in the transponder receiver is accomplished by pulse compression matched filter techniques.
REFERENCES:
patent: 3573819 (1971-04-01), Mason et al.
patent: 3648285 (1972-03-01), Sanders
patent: 3654554 (1972-04-01), Cook
patent: 3680089 (1972-07-01), Sanders
patent: 3780370 (1973-12-01), Reeves
patent: 3875571 (1975-04-01), Davis, Jr. et al.
Couvillon James Benedict
Daniels William Dorsey
Gassner Ronald Lee
Maher Robert Allen
The United States of America as represented by the Secretary of
Tubbesing T.H.
Wildensteiner Otto M.
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