Communications: directive radio wave systems and devices (e.g. – Air traffic control – Secondary surveilance radar
Patent
1997-09-25
1999-10-19
Pihulic, Daniel T.
Communications: directive radio wave systems and devices (e.g.,
Air traffic control
Secondary surveilance radar
G01S 1391
Patent
active
059696648
ABSTRACT:
A method for measuring and characterizing the Air Traffic Control Radar Beacon System without interrupting service which comprises a computer-controller system which captures the beacon radar system emissions during one radar rotation and software which extracts and plots the two antenna signal patterns. Data is collected for 50 microseconds during each degree of antenna rotation, triggered by the first pulse of the three pulse signals, and is then stored in separate omni-directional and directional arrays for subsequent plotting. Data is also collected for 50 microseconds during each one-tenth degree of antenna rotation within the directional antenna main lobe.
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Bedford Brent L.
Kub Julie E.
Ramsey Bradley J.
Sparkman Teresa G.
Stafford Robert B.
Pihulic Daniel T.
The United States of America as represented by the Secretary of
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