GLITCH-FREE DATA FUSION METHOD FOR COMBINING MULTIPLE ATTITUDE SOLUTIONS
First Claim
1. A glitch-free data fusion method for combining multiple attitude solutions, comprising:
- acquiring a plurality of attitude data from a plurality of corresponding star cameras or other attitude sensors;
setting one of said attitude data as a master attitude data, and setting the rest of said attitude data as a slave attitude data respectively;
correcting a misalignment between said slave attitude data and said master attitude data; and
combining the corrected said slave attitude data with said master attitude data.
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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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8 Claims
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1. A glitch-free data fusion method for combining multiple attitude solutions, comprising:
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acquiring a plurality of attitude data from a plurality of corresponding star cameras or other attitude sensors; setting one of said attitude data as a master attitude data, and setting the rest of said attitude data as a slave attitude data respectively; correcting a misalignment between said slave attitude data and said master attitude data; and combining the corrected said slave attitude data with said master attitude data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification