Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1975-09-26
1977-05-17
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
G01S 956
Patent
active
040245381
ABSTRACT:
A warning is provided when a responding IFF target fails to satisfy friencceptance criteria in response to a given number of cryptographic interrogations. Target position information is utilized to aid in determining whether the responses under evaluation come from the same target.
REFERENCES:
patent: 3801980 (1974-04-01), Danton et al.
patent: 3922673 (1975-11-01), Bishop
Blum T. M.
Brown Norman
Schneider Philip
Sciascia R. S.
The United States of America as represented by the Secretary of
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