GLITCH-FREE DATA FUSION METHOD FOR COMBINING MULTIPLE ATTITUDE SOLUTIONS
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Mar 18, 2013
filing date -
Mar 18, 2013
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Abandoned
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Abstract
A glitch-free data fusion method for combining multiple attitude solutions is disclosed, wherein a star camera is set as the master star camera. After acquiring attitude solutions from the star cameras, a rotation difference is calculated between a master attitude solution acquired from the master star camera and a slave attitude solution acquired from other star cameras. Then, a steady difference is acquired from the rotation difference via a low pass filter for correcting the slave attitude solution. When combining the corrected slave attitude solutions with the master attitude solution, the attitude glitches or attitude jumps, which occur while transitioning between data fusion configurations with different number of available attitude solutions, can be eliminated.
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