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MEMS Accelerometer Noises Analysis Based on Triple Estimation Fractional Order Algorithm
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DOI：10.3390/s22020527.png)
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Abstract
En 中文
This paper is devoted to identifying parameters of fractional order noises with application to noises obtained from MEMS accelerometer. The analysis and parameters estimation will be based on the Triple Estimation algorithm, which can simultaneously estimate state, fractional order, and parameter estimates. The capability of the Triple Estimation algorithm to fractional noises estimation will be confirmed by the sets of numerical analyses for fractional constant and variable order systems with Gaussian noise input signal. For experimental data analysis, the MEMS sensor SparkFun MPU9250 Inertial Measurement Unit (IMU) was used with data obtained from the accelerometer in x, y and z-axes. The experimental results clearly show the existence of fractional noise in this MEMS' noise, which can be essential information in the design of filtering algorithms, for example, in inertial navigation.
Keywords:
fractional calculus
fractional Kalman filter
estimation of fractional order systems
fractional order noise
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