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- W2787884037 abstract "Abstract Due to the variation of road conditions and motor characteristics of vehicle, great root-mean-square (rms) error and outliers would be caused. Application of Kalman filter in laser Doppler velocimetry(LDV) is important to improve the velocity measurement accuracy. In this paper, the state-space model is built by using current statistical model. A strategy containing two steps is adopted to make the filter adaptive and robust. First, the acceleration variance is adaptively adjusted by using the difference of predictive observation and measured observation. Second, the outliers would be identified and the measured noise variance would be adjusted according to the orthogonal property of innovation to reduce the impaction of outliers. The laboratory rotating table experiments show that adaptive Kalman filter greatly reduces the rms error from 0.59 cm/s to 0.22 cm/s and has eliminated all the outliers. Road experiments compared with a microwave radar show that the rms error of LDV is 0.0218 m/s, and it proves that the adaptive Kalman filtering is suitable for vehicle speed signal processing." @default.
- W2787884037 created "2018-03-06" @default.
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- W2787884037 date "2018-03-01" @default.
- W2787884037 modified "2023-10-01" @default.
- W2787884037 title "Application of adaptive Kalman filter in vehicle laser Doppler velocimetry" @default.
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- W2787884037 doi "https://doi.org/10.1016/j.yofte.2018.01.020" @default.
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