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• W3005542640 abstract "Kalman filter is commonly used in data filtering and parameters estimation of nonlinear system, such as projectile's trajectory estimation and control. While there is a drawback that the prior error covariance matrix and filter parameters are difficult to be determined, which may result in filtering divergence. As to the problem that the accuracy of state estimation for nonlinear ballistic model strongly depends on its mathematical model, we improve the weighted least squares method (WLSM) with minimum model error principle. Invariant embedding method is adopted to solve the cost function including the model error. With the knowledge of measurement data and measurement error covariance matrix, we use gradient descent algorithm to determine the weighting matrix of model error. The uncertainty and linearization error of model are recursively estimated by the proposed method, thus achieving an online filtering estimation of the observations. Simulation results indicate that the proposed recursive estimation algorithm is insensitive to initial conditions and of good robustness." @default.
• W3005542640 created "2020-02-24" @default.
• W3005542640 creator A5009478898 @default.
• W3005542640 creator A5026643767 @default.
• W3005542640 date "2021-04-01" @default.
• W3005542640 modified "2023-09-26" @default.
• W3005542640 title "Recursive weighted least squares estimation algorithm based on minimum model error principle" @default.
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• W3005542640 doi "https://doi.org/10.1016/j.dt.2020.02.003" @default.
• W3005542640 hasPublicationYear "2021" @default.
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