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- W4294958754 abstract "The performance of transportation systems has been greatly improved by the rapid development of connected and autonomous vehicles, of which high precision and reliable positioning is a key technology. An improved innovation adaptive Kalman filter (IAKF) is proposed to solve the vulnerability of Kalman filtering (KF) in challenging urban environments during integrated navigation. First, the algorithm uses the innovation to construct a chi-squared test to determine the abnormal measurement noise; on this basis, the update method of the measurement noise variance matrix is improved, and the measurement noise variance matrix is adaptively updated by the difference between the current innovation and the mean value of the innovation when the measurement data is abnormal so as to reflect the impact degree of the current abnormal measurement data, thus suppressing the filtering divergence and improving the positioning accuracy. The experimental results show that the proposed algorithm can well suppress the filtering divergence when the measurement data are disturbed. The results demonstrate that the algorithm in this paper has improved adaptiveness and stability and provides a novel idea for the development of an intelligent traffic positioning system." @default.
- W4294958754 created "2022-09-08" @default.
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- W4294958754 date "2022-09-07" @default.
- W4294958754 modified "2023-09-30" @default.
- W4294958754 title "An Improved Innovation Adaptive Kalman Filter for Integrated INS/GPS Navigation" @default.
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- W4294958754 doi "https://doi.org/10.3390/su141811230" @default.
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