Method and apparatus for measuring satellite attitude using GPS
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United States of America Patent
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Nov 3, 1998
Grant Date -
N/A
app pub date -
Nov 29, 1996
filing date -
Dec 1, 1995
priority date (Note) -
Expired
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Abstract
The apparatus has n non aligned antennas, where n is at least for receiving radio signals from a plurality of OPS satellites. Radio frequency signals received by the various antennas are processed for measuring their phase differences, and for computing attitude on the basis of said phase differences. The measurement and computing system is repeatedly calibrated on the basis of measurements performed by a star sensor during periods when it provides usable data.
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