Digitally controlled beam former for a spacecraft
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United States of America Patent
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Aug 6, 1996
Grant Date -
N/A
app pub date -
Jun 27, 1994
filing date -
Sep 3, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A digitally controlled beam former for a spacecraft which includes means for periodically calibrating the feed paths of the spacecraft's antenna array by measuring the apparent movement of the center of a reference signal and a nominal signal and utilising the measured data to compensate for at least the phase drift in the antenna feed paths. The measured data may also be used to compensate for amplitude and phase drift in the antenna feed paths.
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