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• W2754677331 endingPage "2146" @default.
• W2754677331 startingPage "2146" @default.
• W2754677331 abstract "In order to reduce the computational complexity, and improve the pitch/roll estimation accuracy of the low-cost attitude heading reference system (AHRS) under conditions of magnetic-distortion, a novel linear Kalman filter, suitable for nonlinear attitude estimation, is proposed in this paper. The new algorithm is the combination of two-step geometrically-intuitive correction (TGIC) and the Kalman filter. In the proposed algorithm, the sequential two-step geometrically-intuitive correction scheme is used to make the current estimation of pitch/roll immune to magnetic distortion. Meanwhile, the TGIC produces a computed quaternion input for the Kalman filter, which avoids the linearization error of measurement equations and reduces the computational complexity. Several experiments have been carried out to validate the performance of the filter design. The results demonstrate that the mean time consumption and the root mean square error (RMSE) of pitch/roll estimation under magnetic disturbances are reduced by 45.9% and 33.8%, respectively, when compared with a standard filter. In addition, the proposed filter is applicable for attitude estimation under various dynamic conditions." @default.
• W2754677331 created "2017-09-25" @default.
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• W2754677331 date "2017-09-19" @default.
• W2754677331 modified "2023-10-18" @default.
• W2754677331 title "A New Quaternion-Based Kalman Filter for Real-Time Attitude Estimation Using the Two-Step Geometrically-Intuitive Correction Algorithm" @default.
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• W2754677331 doi "https://doi.org/10.3390/s17092146" @default.
• W2754677331 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5621018" @default.
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