Decentralized Attitude Estimation Using a Quaternion Covariance Intersection Approach
نویسندگان
چکیده
This paper derives an approach to combine estimates and covariances for decentralized attitude estimation using a quaternion parameterization. The approach is based on the covariance intersection method, which is modified to maintain quaternion normalization in the combination process. A practical simulation result is provided where local extended Kalman filters are used on two star trackers, each running with common gyro measurements. The covariance intersection approach is shown to provide more accurate estimates than either of the local filters.
منابع مشابه
Aas 08-284 Decentralized Attitude Estimation Using a Quaternion Covariance Intersection Approach
This paper derives an approach to combine estimates and covariances for decentralized attitude estimation using a quaternion parameterization. The approach is based on the covariance intersection method, which is modified to maintain quaternion normalization in the combination process. A simple simulation result is provided where local extended Kalman filters are used on two star trackers, each...
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