Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1977-05-17
1978-09-19
Tubbesing, T.H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 65R, G01S 956
Patent
active
041157710
ABSTRACT:
A virtual secondary surveillance radar (SSR) is provided at any desired location within the coverage area of an actual SSR by receiving the interrogations from the actual SSR and the transponder replies thereto. The received signals are processed to yield information as to the positions of the transponders with respect to the desired location, simulating the performance of an actual SSR at that location.
REFERENCES:
patent: 3895382 (1975-07-01), Litchford
patent: 3921172 (1975-11-01), Litchford
Huff Henry
Litchstreet Co.
Tubbesing T.H.
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