UKF-based attitude determination method for gyroless satellite

UKF-based attitude determination method for gyroless satellite

UKF (unscented Kalman filtering) is a new filtering method suitable to nonlinear systems. The method need not linearize nonlinear systems at the prediction stage of filtering, which is indispensable in EKF (extended Kalman filtering).The linearization error is avoided, and the filtering accuracy is...

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Veröffentlicht in:Journal of systems engineering and electronics 2004-01, Vol.15 (2), p.105-109
Hauptverfasser: Zhang, Hongmei, Deng, Zhenglong
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container_title Journal of systems engineering and electronics
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creator Zhang, Hongmei
Deng, Zhenglong
description UKF (unscented Kalman filtering) is a new filtering method suitable to nonlinear systems. The method need not linearize nonlinear systems at the prediction stage of filtering, which is indispensable in EKF (extended Kalman filtering).The linearization error is avoided, and the filtering accuracy is greatly improved. UKF is applied to the attitude determination for gyroless satellite. Simulations are made to compare the new filter with the traditional EKF. The results indicate that under the same conditions, compared with EKF, UKF has faster convergence speed, higher filtering accuracy and more stable
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title UKF-based attitude determination method for gyroless satellite
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